Hackers drain 1,596 bitcoin from Coldcard wallets in ongoing attack
Galaxy Research first corroborated the opening wave, flagged by engineers at Block Inc., using victim reports. On July 30 it watched hackers empty more than 1,000 bitcoin, about $99m, from more than 1,000 addresses in 41 minutes. By Monday the firm counted three confirmed waves plus 14 smaller incidents, and flagged a suspected fourth that, if verified, would…