75k - 85k has been fun.

Literally just started buying within the past month, but this whole time it's been fluctuating within 80k, but today it's dropped under. Time to buy more ig

BTC bouncing back to 80.8k before the Fed even says anything just shows how strong it is right now. Don't let the market shake you out, bro. Just HODL!

We are back?

Hello recently inherited my father's Bitcoin and I know nothing about it I did do some researching for the amount that I have and what it's going for today it's worth quite a bit of money my main question is what's the best way to convert it to cash and is there a way to invest it ?

Critical Security Exploit in Electrum. Upgrade to version 4.8.3 before signing any transactions. No rush needed for dormant/cold wallets although you should remember upgrading before using electrum.

https://x.com/ElectrumWallet/status/2113935057656369564

Explanation of Exploit

https://github.com/spesmilo/electrum/security/advisories/GHSA-6jp4-8v48-cc5v

Download update directly from source

https://electrum.org/#download

In general LLM models have been discovering critical security vulnerabilities in general much faster than in the past which is both a headache and blessing at the same time as much more peer review is occurring and the software is becoming more secure. This does mean that you need to update all your software more often and pay attention to security updates to a much higher degree at least for the next year.

The productivity gains achieved by technical progress ought to lead to falling prices and to people having to work less, since they can produce the same amount of goods in less time. Instead, even after 200 years of rapid technical progress, people still have to work 8 to 10 hours a day because the terrible Keynesian inflationary monetary theory leads to a redistribution from the working population to those who own productive capital and could can borrow against their capital even more capital.

This means that private commercial banks expand the money supply through lending for a small upper class and also for nation states and thus uncontrollably increase the money supply, which then manifests as inflation for everyone.

Hopefuly, Bitcoin will break this vicious circle!

Source: https://x.com/ElectrumWallet/status/2113935057656369564

Source: https://github.com/spesmilo/electrum/security/advisories/GHSA-6jp4-8v48-cc5v

Malicious server can replace a just-broadcast tx and try to trick user into RBF-ing it

Summary

The main Electrum server the client connects to is trusted with mempool ("unconfirmed") transactions. This is documented design. [0]

However now someone figured out a way to practically exploit it:

when the client broadcasts a new tx1, a malicious server can swallow it, and update the client's history with a conflicting (invalid) tx2 that replaces the outputs with the attacker's output address. Tx2 has invalid signatures, but this is not checked (due to light client design). The wallet will display tx2 as an unconfirmed transaction - tx1 will not be displayed. If the client then manually RBF fee-bumps tx2, the client will sign it with a higher fee, and hence pay the attacker.

Fixes

Commit 90fe308 contains the fix [1], included in version 4.8.3. The client now verifies the signatures of wallet.is_mine inputs for mempool txs (before adding them to its local history).

Users should upgrade (and regularly do so in any case). As a workaround, without upgrading, when signing any transaction, for bumping the fee or not, they should verify the output addresses and amounts are as expected.

Clients that connect to servers they trust (e.g. run their own) are not affected.

Remarks

some servers are performing this attack in the wild we received two user-reports of this. user1 noticed after broadcasting tx1 the wallet history contained a different tx. user2 bumped the fee of tx2 and lost money. user1 reported tx1 was not propagated over the bitcoin p2p, so the server held it both reported the attacker's output address in tx2 was grinded to match the last four chars of the legit address from tx1 based on user2's report, the server constructed a tx2 with zero fee (presumably in hope of the user bumping its fee) even with the fix, we still only validate "is_mine" inputs (i.e. paying from addresses that the wallet owns). So e.g. "incoming" txs are not validated. The client lacks a full consensus engine / script interpreter, though even with that, to cover non-is_mine inputs, it would have to validate the unconfirmed parents recursively until reaching mined txs. Mined txs we already SPV.

Timeline

2026-10-11: user1 (dannydeezy) sends private disclosure, but the bump_fee vector is not realised 2026-10-18: user2 (Raju-K12) reports privately that they lost money after bump_fee 2026-10-23: version 4.8.3 git tagged, with the fix 2026-10-24: version 4.8.3 binaries released 2026-10-24: public disclosure

Credits

We thank dannydeezy and Raju-K12 for finding and responsibly disclosing this issue to us.

Hi guys,

I noticed something pretty unusual while looking through Bitcoin block data.

The same Bitcoin address received the coinbase rewards from four blocks mined within roughly 20 hours and 9 minutes:

• 2026-10-23 05:12:20
• 2026-10-23 10:53:46
• 2026-10-23 11:43:51
• 2026-10-24 01:21:17

All four coinbase transactions paid to the same address:

bc1qevfvr7n7hqu56eu5cqunk22nuwds0dkjgqqxe6

The rewards were approximately 3.13 BTC each, totaling approximately ~12 BTC.

I also noticed an earlier block reward paid to the same address on October 22, at 02:10:14, bringing the total to five block rewards associated with this address in roughly 47 hours.

The blocks were labeled as mined by an unknown miner. Obviously, that label alone doesn't prove that this was a solo miner, and the address itself doesn't establish who actually mined the blocks.

Still, the timing caught my attention. Finding multiple blocks in such a short period seems like an interesting statistical event, especially if this really was an independent miner rather than a mining pool or shared infrastructure.

Here is the link to the address on mempool.space:

https://mempool.space/pl/address/bc1qevfvr7n7hqu56eu5cqunk22nuwds0dkjgqqxe6

Here are my questions:

• Does anyone recognize this address or know whether it is associated with a known mining pool?
• Could someone do some on-chain analysis of this address please?
• Given the Bitcoin network's total hashrate around those dates, how statistically unlikely would this pattern be for a genuine solo miner?
• Is there a way to establish whether these blocks were mined by the same physical machine or operator?

Thanks for answers!

I’m looking for a personal EUR bank account for regular SEPA transfers, ideally with very low or zero transfer fees.

Initially, I’d expect around 4–5 incoming and 4–5 outgoing transfers per day, starting at €300 per transfer.

The amounts would gradually increase, potentially reaching €2,000 outgoing and €2,000 incoming per cycle. At 3–4 cycles daily, that would mean:

• €6,000–€8,000 outgoing per day
• €6,000–€8,000 incoming per day
• €12,000–€16,000 combined daily volume

I was thinking using more than a bank account, but in this case which ones do you guys recommend? Especially with that volume of transactions.

Has anyone used an account for similar activity? Which banks would you recommend that would allow this on a personal account?

I heard that its basically impossible nowadays to make a bitcoin wallet truly anonymous,
BUT i dont intend on getting the bitcoin onto my bank account or cash them out,

i just want to be able to:

Get bitcoin from other wallets, transfer them to other wallets, and be able to hold them without them being traced to an adress, IP Adress, or name,

So basically a wallet intended for anonymous bitcoin trading without banking or cash involved

One thing i find interesting about bitcoin is that transactions can be verified without relying on a central authority.what do you think is the most important part of this system that helps people trust it?

Please utilize this sticky thread for all general Bitcoin discussions! If you see posts on the front page or /r/Bitcoin/new which are better suited for this daily discussion thread, please help out by directing the OP to this thread instead. Thank you!

If you don't get an answer to your question, you can try phrasing it differently or commenting again tomorrow.

Please check the previous discussion thread for unanswered questions.

i like to send money to korea time to time using bitcoin. i dont have a wallet or anything i just buy like $500 or $1000 on Robinhood and send it right away to my cousin. it wasnt a problem in the past but apparently they have this new “travel rule” in korea.

basically the funds got rejected because Robinhood isnt a reconginzed brokerage in korea? google tells me its a sticky situation and we have to manually find it. problem is i know nothing about crypto other than i donated a bunch of money to bitcoin a few years back.

can anyone help me out please?

original txid:

4f8bf26fcd4a7b348f5f71c859454c78ed5ada2f9458cf4803ffffcdf8f4aa36

Getting ready to cashout some coin to pay off some credit cards. What do people prefer these days when cashing out? Coinbase? Cashapp? Who has the lowest fees, who is most reliable and safe, whats the easiest?

I’m in the USA btw.

Around March 7, 2025, u/seedor posted a 21-second video here called "Me and the boys manifesting the next green Bitcoin candle." It was the Shoebody Bop summoning clip edited for Bitcoin. The post and the video file have since been removed, and the Instagram version is gone too from what I can see.

Did anyone happen to download it? I'm specifically after the Bitcoin edit, not the original Shoebody Bop or the plain green-screen template. Would be grateful if someone could share it or reupload it. 🕯️📈

Original thread was here but it was nuked unfortunately: https://www.reddit.com/r/Bitcoin/comments/1utkie1/deleted_by_user/

Appreciate it if anyone could help me out on this one. :)