Approximately 233,000 bitcoins were transferred to safe haven, and the Coldcard attack involved about $15 billion

Comparatively, after the Coldcard hardware wallet firmware vulnerability was exploited, about 2,100 bitcoins were stolen, and the loss was close to US$130 million. According to on-chain data, long-term holders' wallets transferred about 233,000 bitcoins worth about $15 billion a few days before and after the incident.

Nick Neuman, CEO of Casa, said that some of the funds transferred came from Coldcard users migrating to multi-signature wallets, while Ledger and Trezor users also took the same steps after the incident. Approximately 22,000 bitcoins were transferred to the exchange during the same period. Coinkite has asked users who use the 4.1 to 4.1.9 firmware to generate mnemonics to consider the relevant wallet to be compromised and immediately migrate to the new mnemonic. The above version covers March 2021 to July 2026.