INCIDENT EVIDENCE GRAPH

Explained: The Coldcard Hack (July 2026)

2026-08-10T08:28:04Z

Starting on July 30, 2026, the wallets of users of the Coldcard hardware wallet began being drained. The attackers took advantage of a bug in the cold wallet’s key generation code, which allowed them to reconstruct private keys and steal an estimated $130+ million in Bitcoin.Inside the AttackThe roo...

• Victim: Users of the Coldcard hardware wallet
• Exploit: A bug in the cold wallet’s key-generation code
• Method: Reconstructed private keys and stole Bitcoin

Primary evidence

1. Explained: The Coldcard Hack (July 2026)

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