Crypto Security Alert: $110M in BTC Drained After Long-Dormant Wallet Vulnerability Emerges A security issue affecting older Coldcard firmware has triggered one of the largest Bitcoin wallet incidents in recent years. 1,755 BTC (~$110M) were moved from thousands of addresses, with attackers reportedly completing the transfers before the public warning was issued. Here’s what happened: • Coldcard firmware versions around 2021 contained a randomness generation issue • Instead of using hardware-based random generation, affected wallets relied on a weaker software-based method • The possible private key space was significantly reduced, making historical seeds vulnerable to brute-force attacks The key takeaway: Hardware wallets are designed to remove online risks — but they are not immune to implementation failures. Existing seeds generated under affected conditions cannot be fixed through a firmware update. Users may need to generate new seeds and migrate assets. Security practices worth reviewing: • Keep firmware updated and monitor official security announcements • Consider multi-signature setups for larger holdings • Avoid relying on a single storage method • Review old wallet generation history • Use on-chain monitoring for large holdings The broader lesson: Crypto security is not a one-time setup. It requires continuous verification. Data: AiCoin Intelligence For market intelligence only. Not financial advice.(AiCoin)