Episode notes
URGENT BITCOIN SECURITY ALERT A critical security flaw has hit older Coldcard hardware wallets, resulting in a massive on-chain sweep where roughly 594 BTC (valued at over $38 million) was stolen from hundreds of single-signature wallets. Coinkite has issued an urgent warning regarding Coldcard Mk3 devices (and certain firmware versions) where the device generated entropy was dangerously low....dropping from the expected 128 bits down to roughly 40 bits.In this live stream, we break down:• Exactly what went wrong with the Coldcard Mk3 random number generator (RNG) / entropy fallback.• How attackers were able to brute-force and sweep vulnerable wallets.• Which models and firmware versions are affected (Mk3 vs. Mk4/Mk5/Q).• Step-by-step instructions on what you need to do RIGHT NOW if you generated a seed on an affected device.• Temporary mitigations (like strong BIP-39 passphrases) vs. permanent migration.Don't panic, but take action immediately. Drop your questions in the live chat!--- RESOURCES & OFFICIAL ADVISORIES:• Coinkite Official Blog / Security Notice: https://blog.coinkite.com/• Check Mempool Transaction Details: https://mempool.space/• Coldcard Vulnerability & Wallet Entropy Best Practices: https://btcmaxis.com/article.html?id=7554e7cb-d8aa-45d5-95c8-adea8d87ea23---The Canadian Bitcoiners Podcast - New episodes weekly.X: https://x.com/CanadianBTCPodJoey: https://x.com/joeytweeetsLen: https://x.com/thebtcpricebotSite: https://canadianbitcoiners.com#Bitcoin #Coldcard #CryptoSecurity #HardwareWallet #CryptoNews
