Topic
hardware-wallets
5 stories
Coldcard seed bug drives a spike in new Bitcoin addresses as users flee 2021-era wallets
Coinkite users have lost at least 1,816 BTC — roughly $116 million — in four theft waves since July 30, traced to a 2021 firmware bug that generated wallet seeds with a weak software random number generator.
Coldcard wallet drain reaches $88 million, per Decrypt — with the mechanism still unspecified
Decrypt reports that losses from an exploit hitting Coldcard bitcoin wallets have reached $88 million and are still climbing, with the attack vector and vendor response not yet specified.
CZ warns Bitcoin holders after reported $70 million Coldcard exploit
Decrypt reported on August 1 that Binance founder Changpeng Zhao warned Bitcoin holders after a roughly $70 million exploit involving Coldcard hardware wallets, with the attack path still unspecified.
Galaxy puts the Coldcard drain at 1,082 BTC across 1,196 wallets — roughly double the first count
Galaxy Research says an attacker swept 1,082.65 BTC from 1,196 Coldcard wallets in 41 minutes on July 30 by reconstructing weakly generated seeds offline, without touching a single device.
Trezor executive concedes hardware wallets are "clunky" but rejects ZachXBT's "complete garbage" verdict
On-chain investigator ZachXBT called all hardware wallets "complete garbage" for high-stakes use; Trezor's commercial chief conceded the tools are "clunky" but rejected the blanket verdict, while Tornado Cash's Roman Storm sided partly with ZachXBT.