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COLDCARD, CLN disclosures, zk proof of reserves - Bitcoin Optech Newsletter #416

Is there a final number of how much BTC was stolen from the Coldcard hack?

AI might have helped hackers steal $38M in bitcoin

So is my BTC on Trezor safe?

Now that Coldcard is exploitable, where to transfer bitcoin?

ETH ETFs are pulling ahead of BTC ETFs on institutional money right now

Strategy's Q2 $8.2B loss confirms the STRC problem we found in our Q2 crypto industry report

BTC is around $64k but miners are still getting paid like it isn’t

BTC is around $64k but miners are still getting paid like it isn’t

IS DOGECOIN EVER COIN BACK TO 0.5 USD ?

Strategy just posted an $8.2B loss

BTC USDT Long Signal – 31 July 2026

BTC USDT Long Signal – 31 July 2026

What is the biggest lesson BTC taught you?

ETF money came back. BTC still barely moved

Glad to see so many moving to safety tonight in the onchain data!

Strategy creates and updates 10+ new metrics after its older metrics no longer meet its goals and narratives

BTC is coiling tighter than a spring – here’s my hourly setup (July 31 AM)

BTC now the DEFAULT payment method on all square invoices

The DOJ's Deals with the Devils

BTC options were very bullish into month end. Price didn’t follow

Traders who short BTC for last 3 quarters, how well do you make so far?

Coldcard MK3 vulnerability just got announced. In one of coldcards older firmware(4.0.1) updates the wallet was using weak entropy for seedphrase generation. Over $38 million in BTC stolen. Coldcard confirmed this on their X page. If you use a coldcard id play it safe and move your BTC asap.

If BTC is worth so much, why don't the rich buy all the available BTC?

Finally Hit 1.

Wallet Drained Timeline

Coldcard CEO Denies Wallet-Wide Vulnerability After 594 BTC Transfer From 500 Addresses

How do you personally handle moving larger amounts of Bitcoin between wallets?

Is Auction Market Theory relevant when trading BTC perp (or crypto in general) ?

Anyone want 0.03462BTC for PayPal?

With 25,000+ cryptocurrencies out there, how do you decide what to invest in?

Need help to swap Bitcoin

r/BitcoinSee Post

I recall those historic moments.

r/BitcoinSee Post

Have you guys struggled with Crypto-to-cash conversion somehow?

r/BitcoinSee Post

Will We Ever See Regular 10% BTC Days Again?

zkPoH: Zero-Knowledge Proof-of-Hodl — Prove You Own Bitcoin Without Revealing a Single Address.

r/BitcoinSee Post

Satoshi Nakamoto, July 29, 2020. Price of 1 $BTC is $0.06

r/BitcoinSee Post

其实我曾经也参与过但当时我完全不知道这是什么

人生第一次拥有BTC

r/BitcoinSee Post

人生第一次拥有BTC

Fed held rates and BTC barely reacted

r/BitcoinSee Post

Should I buy more or hold in HYSA

r/BitcoinSee Post

Mortgage for BTC

r/BitcoinSee Post

Bitcoin power law - $250K by Oct 2027?

Bitcoin power law - $250K by Oct 2027?

Anyone else noticing the ETH/BTC ratio behavior lately, or am I just staring at charts too long?

Anyone else noticing the ETH/BTC ratio behavior lately, or am I just staring at charts too long?

r/BitcoinSee Post

Bitcoins first private liquid staking

Everyone remembers their first…

Been mapping out how cross-margining tokenized equities against crypto actually improves capital efficiency, mechanics were more interesting than I expected

r/BitcoinSee Post

BTC Puzzle #135 solved by RetiredCoder

r/CryptoMarketsSee Post

Planning to trade BTC perp wiht orderflow: MMT or Mobchart ?

r/BitcoinSee Post

On-chain data shows a divergence between whale and retail BTC activity curious what others think

r/BitcoinSee Post

BTC cycle ???

r/BitcoinSee Post

Future of BTC

Built a crypto automation tool for price surges & dips — looking for constructive feedback

r/CryptoMarketsSee Post

Clarity Act (unpopular opinion)

r/BitcoinSee Post

Lost friends? Changed relationship dynamics?

r/BitcoinSee Post

Let's think about BTC. Year later.

r/BitcoinSee Post

Stupid question

Here is my Bitcoin price prediction 2026

r/BitcoinSee Post

New Trend of manufactured FUD towards BTC

r/CryptoMarketsSee Post

Bitcoin's Final Scarcity: The Coming War for Blockspace.

Is $LTC a Cop or Drop?

r/BitcoinSee Post

Boomer acceptance :-(

r/BitcoinSee Post

Is it really healthy that an entire industry has become dependent on a single company?

r/CryptoMoonShotsSee Post

What Is GoMining? A Beginner’s Onboarding Guide to Digital Bitcoin Mining — What’s Free, What Costs Money, and Where You Can Stop

r/BitcoinSee Post

WARNING: NC Wallet is holding my BTC for 100+ hours. No TxID generated even after paying priority fee (Ticket: NW-150331)

r/CryptoCurrencySee Post

WARNING: NC Wallet is holding my BTC for 100+ hours. No TxID generated even after paying priority fee (Ticket: NW-150331)

r/CryptoCurrencySee Post

The DOJ's Deals with the Devils

r/BitcoinSee Post

Bitcoin is at $63K. Here's why I borrowed cash instead of selling BTC & missing the run to $100K.

r/CryptoMarketsSee Post

Bitcoin miners sold 15,000+ BTC from treasuries to fund AI data center buildouts. Mining stocks are up 56% while BTC is down 17%. Bitcoin's hashrate is now underwritten by hyperscaler AI capex, and the AI trade just had its worst day since 2025.

Crypto liquidity is still there, but buyers look nervous

Crypto liquidity is still there, but buyers look nervous

r/BitcoinSee Post

What actually pays miners once the block reward gets small? Fees are around 1% of miner revenue right now.

r/CryptoMarketsSee Post

Even Strategy is sitting on $3.75B in cash right now

r/BitcoinSee Post

Stop FUDing your own BTC Bag

r/BitcoinSee Post

On 28 July 2016 BTC price was around 655 dollars...😬

r/CryptoMarketsSee Post

What is your strategy?

r/BitcoinSee Post

Bitcoin’s long-term holders are accumulating at a pace we haven’t seen in six years.

r/CryptoCurrencySee Post

"Bitmine repurchased 6.1 million shares of common stock in the past week, an increase from the 5.5 million purchased the week prior. We increased our equity buyback as we view the rising ETH/BTC ratio"

r/BitcoinSee Post

BTC in August?

r/CryptoCurrencySee Post

Strategy Skips a Fifth Straight Week of Bitcoin Buying as BTC Holds Near $65,000

r/BitcoinSee Post

We must be veeery early!

r/BitcoinSee Post

Bitcoin Isn't Dying. It's Growing Up.

r/CryptoMarketsSee Post

Free Crypto Trading Research Tool (Works Better Than Paid Alternatives IMO)

Bitcoin (BTC) is the canary in the coal mine for the quantum computing threat

r/BitcoinSee Post

is buying BTC on random days a bad habit

Bitcoin is up 9% since July 1, while the Nasdaq is down 6%. Those calling BTC a leveraged tech bet, just got proven wrong since it just did the exact opposite of tech for three straight weeks.

r/BitcoinSee Post

Has Anyone Replaced an Unhealthy Habit with Buying Bitcoin?

Crypto never sleeps (24/7/365). BTC has logged more active trading hours since 2009 than stocks have over 50 years.

Complete Public Trade History of Waqar Zaka's WEEX TradFi Challenge My Personal Experience Following It From India

r/BitcoinSee Post

KALSHI BTC 15

r/BitcoinSee Post

Is BTC actually the right investment?

r/BitcoinSee Post

Choice by Kingdom Trust

I built the best app for Bitcoiners to see their lives priced in sats. Meet Compass: Bitcoin Personal Finance App

r/CryptoMarketsSee Post

Is BTC Pumping to 70k

Mentions

i read 594 total BTC

Mentions:#BTC

Historical BTC lost by ETF's: $0 People like you are impossible to debate because comparing ETF ownership which is regulated by the SEC and insured by the US government, versus private custody with no Imsurance which has no regulation at all, is just mind boggling.

Mentions:#BTC#ETF#US

Love electrum, great hot wallet. For 0.007 BTC, sure. Did you audit the code though? I can't. If you can't audit it then you're trusting others looked at it. For large amounts I'm using hardware. I trust HW more than I trust my PC not to leak keys. We both trust these things will generate keys properly.

Mentions:#BTC#PC

Worth knowing before you plan a big one: "accepts Bitcoin" and "accepts your Bitcoin" are not the same claim, and the gap is almost never disclosed on the product page. Sotheby's is the clearest example. They do take BTC, ETH and USDC, but only on lots specifically designated for it, and their own bidder guidance states payment has to arrive from one of five named custodial exchange wallets (Coinbase Custody Trust, Coinbase Inc., Fidelity Digital Assets, Gemini Trust, Paxos Trust), from a single wallet, after photo ID is on file. A payment from your own hardware wallet is refused. So the person most likely to be bidding is the one who can't pay. TAG Heuer is the opposite shape: they will take self-custodied crypto through BitPay on the online boutique, but their US terms cap the whole purchase at USD 10,000, which isn't mentioned anywhere near the products. Pavilions Hotels publishes a proper crypto page covering 28 assets, and then excludes its Bali and Phuket properties from it. Two of the best known hotels in the group, carved out of the group's own policy. None of that is a rail limitation, incidentally. BitPay's own terms say plainly that it has no access to or control over crypto in your wallet and doesn't provide custody. Where a merchant demands a named custodian, that is the merchant's own source-of-funds policy, not the processor's. Practical version: for anything meaningful, read the merchant's actual terms page rather than the "we accept Bitcoin" badge, and ask which wallet before you commit. The constraint clusters at auction houses and banks, the places with the heaviest source-of-funds duty, and is rare at dealers and hotels.

Why? Because she's getting scammed into buying and sending BTC to someone?

Mentions:#BTC

We are either in a long crypto winter, which some see as a time to buy. I have been in crypto a long time, and this is definitely a bad one. When it ends, whether that be another huge rush to come or another downslide is anyone's guess. If you are firm believer, it is your money, and I would say the best bets (literally, because that is what this is) are likely BTC and ETH... maybe SOL. However, I would recommend finding a solid company and investing in its stock right now over crypto. Just my opinion, though.  Again, anyone's guess, and it is possible  I look back at this comment I left and say to myself, "Wow, should have bought some crypto at that time." It is also possible I look back at my comment to this thread and say to myself, "Wow, so glad I didn't jump back in."

Mentions:#BTC#ETH#SOL

I’m down to bet the equivalent of half a btc or one BTC(which do you prefer)? As I would rather bet using BTC than cash unfortunately.

Mentions:#BTC

I agree. I doubt businesses that hold hundreds of BTC keep it all in one wallet, multisig or not

Mentions:#BTC

I would add ETH to that big if as well. Better utility than BTC, but yes, BTC could continue to be a sort of "digital gold."

Mentions:#ETH#BTC

BTC under $35k by 2029 — remind me later. 

Mentions:#BTC

And to think I got mocked in the coldcard subreddit years ago when I refused to buy their products because I didn't want to have to pay in BTC. So glad I never made that purchase

Mentions:#BTC

It's not a classic one. In general this is just Saylor longing BTC at 3x for free. If he makes money on his bet he gets more money, if he ends up rekt it wasn't his money to begin with. A rare win-win for one guy and one company

Mentions:#BTC

I see math is not your strong suit. If the hash price increased $4, it is up a little over 14% (4/28). BTC has increased from a low of 57k to 64k that’s an increase of 12% (7/57). The increase to the hash price is higher than the increase to BTC price.

Mentions:#BTC

Yep correct, and the fee market is basically doomed. Self-custody is a pipe dream. Btc is mostly managed by custodians, with everything settled internally via IOUs and UTXOs consolidated as cost-effectively as possible. Even Big Players choose custodians because of the asymmetric risk of self custody — No significant fees OTC trading — No fees Lightning — Basically no fees Stuff like Ordinals, caused extremely short-lived fee spikes and no permanent fees Stupid narratives like “store of value” also no fees... people don’t want to use BTC because it’ll be worth more tomorrow. ETFs are parasitic, effectivly no generation of fees while billions get moved around and Blackrock has basically zero exposure to the risk of Btc but earns a ton with it. There is no killer app or killer marketplace that would or could generate strong demand for blockspace — no fees Security budget problem will kick in soon.

Mentions:#BTC

A Saylor scheme is when you take investment capital from shareholders and instead of actually investing it, uses it to pay another group of shareholders. And vice versa. 1. They sell MSTR to pay for STRC dividends 2. They ATM STRC above $100 to buy BTC, which increases MSTR value It's circular.

ELI5 - what happens on Oct 4 when BTC is 30K? Everyone BUY BUY BUY what does the market do? Does the price change? Crypto is too big brain for me.

Mentions:#BTC

**A Saylor Scheme** is Ponzi-adjacent. Design-wise, they are very similar. The main difference is that Strategy openly-discloses its actions while a Ponzi scheme lies about what it does. ####**Ponzi Scheme**: Shareholders are **directly** paid by other shareholders. The scheme is hidden behind fake accounting and fraud. New shareholders pay old shareholders. ####**Saylor Scheme**: Shareholders are **both directly and indirectly** paid by other shareholders. The scheme is publicly visible, but hidden by financial complexity. 1. Group A directly pays for Group B: New MSTR shareholders pay for STRC dividends. (Though recently in July 2026, there was a BTC sale that paid for STRC dividends). 2. Group B indirectly pays for Group A: New STRC shareholders pay for BTC (via ATM when its price is over the $100 par), which indirectly increases MSTR value Similar to a Ponzi scheme, there are no external customers increasing shareholder value. Unlike a Ponzi scheme, Microstrategy can also legally pause dividend payments for STRC indefinitely, so it has a mechanism to temporary prevent a complete collapse of the company if there are no more new investors. Thus a Saylor scheme is not a Ponzi scheme, but it has significant similarities.

The “not your keys” crowd is already dwindling by the day, I predict that in 10 years almost all BTC will be held as ETF’s and that people using self custody will be viewed the same way as “cash under the mattress” types are today

Mentions:#BTC#ETF

Without the steady fee revenue that was supposed to be there by now, miners are stuck with mostly block subsidies which are only getting smaller and smaller. Without fee revenue, or BTC appreciating in fiat price continuously, they're going to start finding themselves pretty screwed.

Mentions:#BTC

Bitcoin has always had this security hole right in its head and its been largely ignored by the cultists for years. Fee revenue never amounted to dick because the chain was never scaled meaningfully to have the millions of daily, spending users it needs to make up for the block subsidy running dry eventually. Then BTC just became more institutional where its mostly parked in accounts and silo'd by Blackrock etc, and doesn't need to move around much to lock in this dysfunction.

Mentions:#BTC

This was my first cycle so i didn't understand only when to take profit but one good thing i did is DCA and right now i am staking BTC , ETH , SOL and in alts i am staking REKT and CHECK tokens .

>People expect that the hardware wallet which is the favorite of BTC maximalists would be safe. Then they are delusional. If you're so keen on self custody, you'd also have to DYOR on what could go wrong. If you don't... well, I feel bad for you but you're just waiting for something to happen to your funds. >Passphrases are super problematic and shouldn't be necessary. True. It's just another level of protection if you somehow fuck something up and expose your seed phrase. If you do everything right, it's absolutely overkill and not necessary.

Mentions:#BTC#DYOR

None of that is basic opsec lol. People expect that the hardware wallet which is the favorite of BTC maximalists would be safe. Passphrases are super problematic and shouldn't be necessary.

Mentions:#BTC

Does it mean there are more buyers for ETH ETFs and BTC token than BTC ETFs and ETH token

Mentions:#ETH#BTC

Not FUD sadly, it's remote. Seeds generated on 4.0.1+ firmware came from a busted RNG, that's the 594 BTC sweep. New firmware won't save an old seed btw, you need a fresh one and move your coins. 'd go Passport, only one with published audits and open hardware. Coldcard weirdly still #2, five year old bug but they patched same day. Rabbit hole with sources: https://inteldo.com/s/1d9aca16-5f1d-4459-ad59-da81b0cb43dc

Mentions:#FUD#BTC

A ponzi is when you take investment capital from people and instead of actually investing it, steals it and uses some of the money to pay off the last suckers. This isn't really what Saylor is doing, its more like a really shitty hedge fund whos entire model was based on BTC being $500k by now. It didn't do that, and now the corporate timers are ticking on all the debt.

Mentions:#BTC

"BTC Only wallets are more secure because there is less code to vet"...

Mentions:#BTC

We moved from http to https gracefully over a number of years because, despite being partially distibuted, the web has enough centralisation and standards to remain coherent. BTC can't do that without forking, and when the wallets on the existing chain start getting emptied, confidence will be so low it won't matter anymore.

Mentions:#BTC

I think BTC is the worst and eth maybe but BTC was supposed to be the truly decentralized anon currency, lol those days are long gone

Mentions:#BTC

Warning to coldcard users who havent heard the news, seems to be an exploit 594 BTC drained

Mentions:#BTC

Zcash pulled a 10x in a year off the privacy narrative. XMR/BTC is up 100% in a year. I'd say people still care about privacy.

Mentions:#XMR#BTC

Your specific BTC UTXOs are only "quantum safe" as long as they sit idle on your address. The moment you try to make a transaction they become vulnerable. That's not really safe. That's like saying "I have a knife that is always sharp - well, unless you use it for intended purpose of cutting things, at which point there's chance it becomes dull instantly before you cut anything) Are we both living in different universes? Last time I checked there was not even BIP proposal for specific PQ solution. If you are talking about BIP360 and 361, they are dealing with different thing and don't specify any PQ scheme. So there's definitely nothing "ready to be deployed". Google recently shortened their PQ migration deadline to just 2029. Roadmaps of some quantum companies (like IONQ) indicates that they could have powerful enough quantum computer to break ECDSA in 2028/2029. I don't think you will have that much time to wait for 2030s to start taking this seriously. Btw, Ethereum is also trying to have PQ upgrade ready (but without migration) in 2029 according to their roadmap.

Mentions:#BTC

Will the company compensate their customers who lost their BTC because of their product?

Mentions:#BTC

Their only strategy is buy BTC. It is an insane business model.

Mentions:#BTC

Post is by: sunsetsxskies and the url/text [ ](https://goo.gl/GP6ppk)is: /r/CryptoMarkets/comments/1vbmkji/eth_etfs_are_pulling_ahead_of_btc_etfs_on/ BTC ETFs are still down about $4.84B net this year, even though it's improved a bit lately. Meanwhile ETH ETFs have actually been getting more institutional inflow than BTC over the past while. Also whales (10-10k BTC wallets) have sold around 70k BTC since late April, but retail's been buying the dips instead. It's kind of an interesting mix of signals happening all at once tbh. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/CryptoMarkets) if you have any questions or concerns.*

Mentions:#GP#BTC#ETH

Yeah exactly. That’s basically what I was getting at. BTC price recovered, but miner economics didn’t recover nearly as much. Hashprice shows that gap way better than just looking at spot price.

Mentions:#BTC

Fair point. I’m not saying miners need sympathy, just that miner economics can still be useful to watch as part of the network. Difficulty adjusts, weak miners drop out, and the rest survive. I just don’t think BTC price alone tells the full story.

Mentions:#BTC

Hashprice is the metric that actually matters for miner health and nobody seems to look at it until they start turning off rigs $32/PH is still rough territory considering the halving cut everything in half, the BTC price would need to be way higher to offset that

Mentions:#BTC

Takes one day including the design and implementation in the core? Getting consensus for it too? And deployment to all the nodes around the world? Oh, and implementation into all wallet apps? Including the hardware ones which currently don't even support PQ cryptography in software layer (and not mentioning lack of hardware chips with PQ crypto support, as it will be extremely slow otherwise). And the migration. Not only every user needs to do an action - which will be extremely slow and long process on its own, years even. Many addresses are already lost or abandoned. Especially the very old addresses from Satoshi era, holding million(s) of coins. And these won't be migrated at all. So you need a mechanism to neutralize them - lock/burn them - which will also be hard to take consensus on, and then you need to give people enough time to migrate (ideally at least few years). Also vulnerable are not only legacy schemes, but also simply reused addresses. So in total it's estimated that about 30% of whole BTC supply is vulnerable. So if you think you will go to sleep one day, and when you wake up the other day that whole Bitcoin ecosystem will be suddenly PQ safe... that would be just you still dreaming.

Mentions:#BTC

Honestly, the biggest lesson for me was learning not to panic over every price swing. BTC taught me to zoom out, think long term, and only invest an amount I’m comfortable holding through the rough days. It also made me realize that constantly buying and selling doesn’t always mean you’re making progress.

Mentions:#BTC

BTC is never been about mass adoption. Its about giving people a way out from losing their buying power due to inflation and giving them back financial freedom.

Mentions:#BTC

The more money you have the harder it is to launder funds, so time will not really solve that issue. Small amount of money is easy to launder, but billions is much harder and its just much easier to get 10-20% cut of it legitimately. Feeding it to mixers slowly over time and using it p2p is difficult. Also don't assume buying gift cards and other p2p services will protect you. BTC -> Bitrefill -> UberEATS will basically link stolen funds to your IRL identity and you only need to screw up once. You cant treat p2p as a blackbox because realistically its not.

Mentions:#BTC

BTC is a global asset and ETFs are just a small piece of the puzzle. Curb your expectations lads

Mentions:#BTC

If MSTR increases BTC per share by selling MSTR and buying BTC with mNAV > 1 (market cap of MSTR > BTC holdings of MSTR) then when it's the other way around (mNAV < 1) MSTR would increase the BTC per share by selling BTC and buying back MSTR stock with that money. They should do that, no?

Mentions:#MSTR#BTC

Let's be real... your aunty doesn't need to self custody BTC.

Mentions:#BTC

BroadcasTheNet invitation for sale $500 [https://t0rrentinvites.com/showthread.php?tid=491](https://t0rrentinvites.com/showthread.php?tid=491) Payment: LTC or BTC GOOGLE HANGOUTS ( Email ) >>> [theseller.ti@gmail.com](mailto:theseller.ti@gmail.com) Discord: theseller.ti Telegram: [https://t.me/T0rrentinvites](https://t.me/T0rrentinvites) Telegram: u/T0rrentinvites \----------------------------------------------------------------------------------------------------------------------------------------------- Art Of Misdirection \[ AOM \] invitation for sale $500 [https://t0rrentinvites.com/showthread.php?tid=537](https://t0rrentinvites.com/showthread.php?tid=537) Payment: LTC or BTC GOOGLE HANGOUTS ( Email ) >>> [theseller.ti@gmail.com](mailto:theseller.ti@gmail.com) Discord: theseller.ti Telegram: [https://t.me/T0rrentinvites](https://t.me/T0rrentinvites) Telegram: u/T0rrentinvites

Mentions:#LTC#BTC

I think ETF flows are more of a medium-term demand signal than a day-to-day price driver. If long-term holders, miners, early investors, or even market makers are supplying enough BTC, those inflows can get absorbed without a huge move

Mentions:#ETF#BTC

I use Ledger and have been a BTC and Blockchain evangelist for a decade. This one genuinely has me questioning whether to stay in!

Mentions:#BTC

Well thank god I said *typically* right 🤣 Jokes aside this is big news, doesn’t happen often. But again, it wasn’t BTC itself was it? Coinkite is a Canadian Bitcoin hardware company, and in this case the massive fuck up was caused by their devs. Taken outside of a context like this, the first thing most would think of is a scam innit.

Mentions:#BTC

Nothing says “everything is fine“ like **10,000 BTC** suddenly waking up after years of hibernation.

Mentions:#BTC

Honestly, selling some for a broken car is not a failure case. That is what liquidity is for. A Bitcoin-backed loan can make sense when the cash need is planned, the LTV is low, and you already know how you would repay or add collateral if BTC drops hard. In your case the tradeoff was more practical: avoid the bank loan, avoid the extra gap insurance, and solve the problem immediately. The tax/upside argument is real, but it is not free. If the loan turns a car problem into a margin-call problem, selling a bit of BTC can be the cleaner move.

Mentions:#BTC

I think the broader eco is just not favorable to anything atm, the exact same inflow during a another time would see a different impact on BTC.

Mentions:#BTC

I think the point is that no matter what avenue you take to secure your BTC, it has risks that won't be palatable to average people.

Mentions:#BTC

Get good at trading BTC first

Mentions:#BTC

Man that SparkKitty thing is wild, malware getting past app store checks is scary stuff I keep my seed written on paper inside old Ben 10 DVD case, nobody gonna look there lol. My friend lost like 0.3 BTC last year cause he had screenshot in his phone and some shady calculator app got access to gallery, he still kicks himself for that Cricut machine been great for making metal stamping templates too, can stamp the words onto steel plates so even fire cant destroy it. Offline storage is the way to go

Mentions:#BTC

It's crazy how many hacks there have been on self custody solutions the last few years. Is there anyone keeping a tally on how much in USD (at time of theft / fraud) and how much BTC has been stolen from self custody solutions vs exchanges? I'm feeling it's getting close between them, at least USD wise. 

Mentions:#BTC

BTC did not react to... nothing happening. Crazy.

Mentions:#BTC

I gave up on managing this on my own, and now only use Revolut for buying crypto. But i don't have massive amounts of BTC

Mentions:#BTC

With all the KYC/AML/SOF nowadays I don't see much advantage of holding BTC on a regulated exchange versus an ETF with simpler tax reporting from your broker. This isn't the Wild West anymore....the easy, no-questions-asked on/off ramps are all but gone.

Mentions:#BTC#ETF

News hasn't been twisted and exaggerated by mainstream media yet. People may panic after headlines like, "Bitcoin Hacked, 594 BTC Lost So Far..."

Mentions:#BTC

Hopefully, we can still see $10,000 worth of BTC.

Mentions:#BTC

they are not in BTC, they have no money invested... they want you broke and then they feel apart of it.

Mentions:#BTC

How do you know it’s the users who are moving the BTC and not hackers stealing en mass. Since the exploit is exposed, everyone and their mother will vibe code his/her angle to try to get some BTC out of this mess.

Mentions:#BTC

Not quite - Mk3 did use onboard RNG, but Coinkite thinks that RNG was weaker/more predictable on certain firmware (4.0.1–5.0.3), not that it skipped randomness entirely. 594 BTC got swept from old Mk3 seeds because of it. Mk4/Q/Mk5 use different hardware and aren't affected.

Mentions:#BTC

Targeting 50k before major long. Got a nice entry at 58k and took 75% profits form this summer rally but in the red right now on my BTC long (just a few 100$) Been shorting ALTs since november and that has been really profitable (348%)

Mentions:#BTC

Also the previous post of someone losing 0.7 BTC from cold card was just here.

Mentions:#BTC

How long have you been involved in the BTC market?

Mentions:#BTC

And that's why I only buy BTC ETF to avoid this

Mentions:#BTC#ETF

Yep, 594 BTC so far

Mentions:#BTC

According to block's report, all coldcard models are vulnerable. MK4's RNG at least had a reseed that makes it harder to hack than MK3, so you have some time. I would move your BTC as quickly and carefully as you can.

Mentions:#MK#BTC

Sorry, didn't mean to imply you're anti BTC, I do however think you're a bit cowboy about the space. Hell AML/KYC and OFAC monitoring as well as tracking politically exposed persons are all examples of regulations. I feel there should be better clarity around these points as well as on and off ramps to fiat. I understand how people utterly hate that idea but if you control the exchange to fiat you can slowly clamp down on bad actors, it won't happen overnight, but just like tightening banking requirements and what was required for access to SWIFT cleaned up a lot of banking problems the same can be done for BTC.

Mentions:#BTC#SWIFT

Give me one example of a regulation? I don't think you know anything about how hacking works. I also never said I was against BTC. Like I said, I've been in the space since 2011. I just simply said the industry has changed a LOT since back then and it's basically a completely different use case and ecosystem now. And then sprinkled in some advice that people shouldn't expect parabolic movements anymore.

Mentions:#BTC#LOT

So since we can't have perfection we shouldn't bother with anything? I strongly disagree. I am a huge proponent of BTC. I paid for my truck back when it was $100/coin... (Yes there is some lament about that). Those huge hacks would be made incredibly more difficult and harder to profit from with better regulation.

Mentions:#BTC

"Block’s engineering and security team found another set of transactions that could be a part of the Coldcard drain. We’re still working to vet these completely, but given the situation, we feel it’s important to share early. There are 695 earlier transactions with the same full fingerprint that transactions in the known set had. These transactions moved another 488.10957948 BTC. If this is part of the same attack, it’d bring the total to 1,082.58680432 BTC." Looks like 488btc was drained before the 594btc that was reported. Wow.

Mentions:#BTC

Respectfully, it sounds like you don't really know what you're doing. I would recommend not doing anything today - your BTC is in no way affected by this exploit. Take the time over the next couple of days to learn about self-custody and improve your own setup (PP, multisig etc.). There will be more exploits in the future, and you want to be safe.

Mentions:#BTC

Reading this and just now got an X notification that coinkite users may be at risk. 594 BTC theft. Sorry OP 😔

Mentions:#BTC#OP

The whole point of BTC is that you can't call up a lawyer or judge and reverse transactions. Sorry bro

Mentions:#BTC

I am in a simar situation. I have mk4 & didn't roll dice. I do have 5 wallets though. So I was able to move my funds to another wallet. I reset my cold card and genrated a new seed phrase via dice roll and added a passphrase. In your case i would move to an exchange. After you have confirmed that there is no more BTC in your cold card i would reset the device and generate a new sesd phrase via dice roll. And also include a pass phrase. But if you feel like seld custody is too much, in my opinion an exchange holding it for you is ok. An exchange like River would be my recommendation.

Mentions:#BTC

I don't think you understand the difference between traceability or transactions versus traceability of ownership (aka KYC). BTC also cannot actually offer full traceability of transactions because it can be obfuscated using various techniques (such as converting into untraceable coins, or layering). How do you think these huge hacks that are in the $100s of millions or even $Billions are gotten away with? What regulations will do in this space is just screw over the average person, and at that point they might as well just stick to traditional banking and stocks.

Mentions:#BTC

17 years of Bitcoin, billions of investment and hype, and it has proved exactly three use cases: 1. Buy BTC, wait a bit, and sell to a sucker for more dollars than you bought it for. 2. Vehicle to scam people and then eventually exchange for actual money. 3. Money Laundering. You went for Use Case 1 but ended up in on the wrong side of Use Case 2. Sorry. Not the first nor the last.

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You still need regulations, particularly around AML. There's really no new tech needed either. BTC supports full traceability of money movement.

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Address leak is dangerous. Arent people known to have BTC in France (based on their tax returns) getting burglarized and kidnapped for their keys?

Mentions:#BTC

I generated my seed on an earlier firmware version, and *added* dice rolls. No passphrase. Not affected yet. But I’ll likely move my BTC back to exchange in the near-term…

Mentions:#BTC

Restore the seed phrase on any hardware wallet and move the BTC

Mentions:#BTC

Don't remember everyone claiming top was in back in October. Most people were apathetic to to ATH price. I agree with you on BTC, a massive rotation out of BTC is coming.

Mentions:#ATH#BTC

Anither reason etfs are viable for many. People are afraid to invest when their $ can be gone so easily. Fidelity doesn’t get hacked, no seeds to remember. BTC can’t be just for apocalyptic scenarios!

Mentions:#BTC

Deny whatever you want, there is an exploit for seedphrases generated with mk2/mk3, simple as and people lost their crypto. Coldcard, you owe people a total of 594 BTC, simple.

Mentions:#BTC

[https://blog.coinkite.com/coldcard-mk3-seed-generation-warning/](https://blog.coinkite.com/coldcard-mk3-seed-generation-warning/) Coldcard acknowledging the issue be like : "Out of an abundance of caution" When your client just lost 594 BTC because of a mistake you made, acknowledging the issue is not "abundance of caution", it is the least you can do. This company is a joke. Guys who use a Coldcard, make yourself a favor and buy a new hardware wallet

Mentions:#BTC

with the AI costs skyrocketing, mining being ever more expensive for BTC, and quantum computing biting at the heels of integrity, I wonder how we could see a bull run in anything and SOONER than 2029. I say more consolidation and collapse of a once good thing..If all the miners just stopped mining bitcoin does that trigger some kind of unlocking code that just gives it away? Would bitcoin just start to become worthless either way if no one can outpace quantum computing hacks?

Mentions:#BTC

BTC has no intrinsic value. It requires an active market of buyers/sellers and users of BTC transacting and hence needing security of transactions to define its value. If a few rich people bought all available coins, they'd eventually have no value as everyone would move on to something else as their digital gold of choice.

Mentions:#BTC

Yep, the purpose of BTC is to be drained from a wallet thru no fault of the owner?

Mentions:#BTC

I wrote a long as reply but I accidentally closed my app, and I'm not going to write it all out again. Basically. I've been in this space since 2011. It's mostly just bs market manipulation now, projects and visions don't mean anything and everyone knows it. Satoshi left bc it had already gone away from his vision way back then. People should invest 5-10% of their portfolio into crypto (not meme coins, have a separate gambling portfolio if these your thing), and expect it to grow more linearly like equities now. People wack off to the idea if more regulation, banking KYC, gov/elite control & hoarding, and seem to love that a single person can shift it by 10% with one post. The market is still tiny, BTC is almost worth as much as Elon. So sure, we can still be "early" but it can also just fizzle out. Maybe it stays #1 or maybe some new tech takes it place. Either way, just because it did ~140,220,000X from the original $0.0009 doesn't mean it will even do another 50x in our lifetime. But who knows. Some AI related stocks have done 30-50x in the last year. Market manipulation has clearly become openly accepted in stocks now, so maybe big money will just stick to that now. Quantum may break it (your bank can update their system, and use 2FA), and it's still open to powerful entities doing 50%+ attacks. Whether people want to admit it or not, crypto (not saying just BTC) is used to transfer illicit funds. For the average person, I think it's foolish to store life changing money into it. There are better investments. But if your thing is to still ape into it chasing a 10-100x Lamborghini life, then go for it.

Mentions:#BTC

It's a game of keeping your wealth safe and maximizing return. With the numbers people hope to get out of AI, the rosy-eyed 20% CAGR of BTC gets passed over for triple digit gains in AI tools, companies, or chips. Plus a lot of people got on the BTC hype train, regular users still are getting taken in scams, and you've got people like trump actively laundering money through his family coins and companies, making the world of crypto just as shady as many feared. To most people crypto and BTC are no different. Bitcoin struggles in a world with many countries are happy to print unlimited money, and have zero inventive to increase adoption beyond long term greed. Buy BTC and it may go up to some amount eventually. Buy a stake in a semiconductor business and they keep having customers want more newer faster ones every 18 months at generally increasing prices. No one has to have bitcoin, but they effectively have to have a computer or a phone just to have a hope at making a living wage. Not the whole picture and I still believe it's got value in the long term, but it's not nearly as sexy as it once was for people who already have enough to provide for a generation or two.

Mentions:#BTC

Even if they bought a ton of coins they wouldn't tell anyone and the rich buy OTC so it'd be off chain and wouldn't affect the price except for scarcity, but now companies like Microstrategy and ETFs can paper trade it essentially creating so many paper BTC that the scarcity is hardly affected also. I'm not saying it won't happen but if/when it does it'll be too late and the price will moon when paper scarcity runs thin.

Mentions:#BTC

Again what is beneficial is sometimes hard and could certainly prevent adoption. Unfortunately there isn’t a good solution to fixing inflation besides moving onto a sound fixed money like BTC but the requirement is that there’s a bit of learning curve and interim solutions like ETFs because the alternative is to do nothing and have inflation wipe out everyone’s savings. You just have to choose your risk.

Mentions:#BTC

If OP decides to go along the justice path, this will most certainly be long and hard, but that is his only shot at ever getting compensated. The bad thing is that, if if he receives damages, this will be in USD. Even if the 0.79 BTC are worth 200k$ when the trial is over, OP will only get about 50k USD, which is what the BTC are worth today

Mentions:#OP#BTC

Yah it’s looking like the seed was pre-filled. But it’s all speculation at this point. Funny thing is that I used to have BTC on a single sig cold card a few years ago but decided to send it to my multi-sig instead and it was a MK3, I just use that MK3 now as a signer for the multisig 

Mentions:#BTC#MK

my exchange must have my BTC, how can i lose it if i dont have it

Mentions:#BTC

This is the kind of thing that scares me! I have a ledger so not affected but how are we supposed to feel safe when things like this can happen? Just look at the tangem incident where they leaked peoples seedphrase in a log file... People bought the coldcard to keep their BTC safe and instead it got drained due to some exploit. WTF.

Mentions:#BTC

The thing you should look at is the halving cycles. 2020-2024-2028-2032 etc. There's a small, then a big spike. You're good for now. BTC takes off in the year 2028 for the initial halving and then in 2029 for the bigger spike because of the halving..Currently, we're in 2026. The next supported spike is 2028 and 2029, which will start a new Bull Cycle.

Mentions:#BTC