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The Nexus
SECURITYJul 31 · 15:22 UTCBITCOIN MAGAZINEShinobi

COLDCARD SECURITY RISK: IMMEDIATE ACTION REQUIRED

Coldcard wallets (MK3, MK4, MK5, Q) have a critical security vulnerability allowing attackers to brute-force seed phrases if generated without sufficient entropy (e.g., 50+ dice rolls). Funds are actively being drained, with 1000 BTC reported moved. Immediate action is required to move funds to secure wallets, use passphrases, or adopt alternatives like Nunchuck.

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COLDCARD SECURITY RISK: IMMEDIATE ACTION REQUIRED · The Nexus