A reported $116 million Bitcoin theft involving Coldcard hardware wallets has exposed a disturbing reality: cryptocurrency can be stolen without physically hacking the devices or compromising blockchain security.
Attackers allegedly exploited weaknesses in the cryptographic randomness used to generate wallet recovery seeds, making certain private keys vulnerable to computational guessing.
Instead of breaking encryption, criminals reportedly used brute-force techniques to reconstruct predictable keys and gain control of associated Bitcoin addresses.
Investigators linked approximately 1,816 BTC across more than 5,200 addresses to suspicious transactions, although the precise losses and technical findings require independent confirmation.
The incident challenges the assumption that offline hardware wallets automatically guarantee protection against sophisticated digital theft.
The fundamental problem lies in weak key generation, where insufficient randomness can undermine otherwise secure cryptographic systems.
Financial institutions and cryptocurrency investors must prioritise independently verified firmware, secure seed generation, multisignature authentication and regular security assessments.
The warning is unmistakable: Bitcoin's blockchain need not be hacked when predictable private keys can unlock digital fortunes.
