Coldcard Hardware Wallet Hack: How a Random Number Generator Flaw Led to Massive Bitcoin Losses

A widely used Bitcoin hardware wallet was recently compromised, leading to significant losses for thousands of users. This report explains how the attack was possible, why a firmware update could not solve the problem, and how victims attempted to recover their funds.

■ Background of the incident
- Hardware wallet security and seed phrase generation
- The random number generator flaw

■ Attack and impact
- How attackers derived private keys
- The scale of losses and affected users

■ Recovery and takeaways
- Why firmware updates were insufficient
- The rescue process and its limitations

Cryptocurrency users and security enthusiasts will gain a clear understanding of hardware wallet risks and the importance of secure key generation. Viewers are encouraged to review their own wallet security practices after watching.