Coldcard Seed Exploit Drains 1,000+ BTC Across 1,200 Wallets
A software vulnerability in the Coldcard hardware wallet has allowed an attacker to reconstruct private keys without physical device access, resulting in losses that have grown from roughly $38 million to approximately $70 million as the exploit continues. Nearly 1,200 wallets have been swept, with Galaxy Research detailing the seed-generation weakness at the heart of the attack. The incident is reigniting debate over self-custody security and whether retail holders may migrate toward regulated Bitcoin ETF structures.