Coldcard Hardware Wallet Flaw Linked to $70 Million Bitcoin Theft in 41 Minutes
On July 30, 2026, an attacker drained 1,196 Bitcoin addresses in 41 minutes, stealing 1,082.65 BTC worth approximately $70.2 million. Galaxy Research…
Tag: Coldcard
Coinkite: Maker of Coldcard Hardware Wallets
Coinkite is a Canadian company that designs and manufactures Coldcard, a Bitcoin-only hardware wallet. It also produces TAPSIGNER, OPENDIME, and SATSCARD. The…
Block: Security Research Firm
Block is a security research firm that traced the Coldcard firmware flaw to a production config issue in the libngu library, which…
Coldcard: Bitcoin Hardware Wallet
Coldcard is a Bitcoin-only hardware wallet manufactured by Coinkite. A firmware flaw in its seed generation process was linked to a $70…