Coldcard Firmware Flaw May Have Put Thousands of Bitcoin Wallets at Risk (wp.me)

submitted 3 weeks ago by UnLocoPoco@lemmy.world to c/crypto@lemmy.ml

0 comments fedilink hide all child comments

A serious firmware flaw in COLDCARD hardware wallets has shaken the Bitcoin community after researchers linked it to large-scale wallet thefts. The issue affects seed generation, where some firmware versions produced recovery phrases with significantly lower entropy than intended. That makes the 24-word seed phrase far more predictable, allowing attackers to brute-force private keys in cases where users relied solely on the generated seed. Reports indicate hundreds of wallets have already been drained, with approximately 594 BTC stolen.

no comments (yet)

sorted by: hot top new old

there doesn't seem to be anything here

this post was submitted on 31 Jul 2026

5 points (100.0% liked)

cryptocurrency

3269 readers

2 users here now

The largest cryptocurrency community on the Fediverse!

Lemmy community dedicated to cryptocurrency news, technicals, education, memes and so more!

💬 Chat on Community Improvements and Development

Community Knowledge Base:

Be nice, have fun.

Community rules:

No Spam
No ads
No aggressive coin promotion or attacks on others
No ICOs / IEOs / STOs / token (pre)sales / scam schemes promotion
No trading/buying crypto discussions
No promotion of trading groups, courses, signal groups, or other trade groups
No pumping and shilling
No casinos, giveaways, faucets, begging
No price speculation posts
No trolling

General lemmy.ml instance rules applicable here too.

Ugly brother of this community: bωockchain

For a community devoted to cryptography itself, visit c/cryptography

founded 7 years ago

MODERATORS

tracyspcy@lemmy.ml

mlsuyt@lemmy.ml