Tag: chainalysis

COLDCARD Wallet Flaw Exploited in $88 Million Bitcoin Heist

In a shocking heist, hackers exploited a flaw in COLDCARD Wallet firmware to steal approximately $70.2 million worth of Bitcoin in a mere 41 minutes, targeting 1,196 addresses in a single wave of automated transactions. The attackers used a telltale signature - overpaying 30-75 times the median transaction fee - that pointed to their use of an automated tool.