Coldcard security incident history
Hacking, data breaches and other security incidents involving Coldcard, with related coverage.
Incidents: 1 · Most recent
Coldcard Bitcoin wallet hack causes $130 million in losses
Impact: $130 million in users' cryptocurrency
Coldcard Bitcoin wallets were hacked and users' assets were stolen. The losses grew from $89 million on August 3, 2026 to $130 million on August 5. After the hack, $15 billion worth of Bitcoin was moved to safety.
Related reports: 4 · last report →