Coldcard Hack Triggers 233,000 BTC Mass Transfer

A recent hack of the Coldcard wallet service has led to significant movements in Bitcoin holdings. According to reports, an attack exploiting a firmware vulnerability caused approximately $130 million in losses.

The attack also triggered a mass transfer of 233,000 BTC from long-term holder wallets. This figure represents more than 100 times the value of the funds stolen from Coldcard users.

Some of the transferred Bitcoin was moved to multisig wallets, while others came from Ledger and Trezor users who were prompted to act due to the breach.