COLDCARD EXPLOIT LIVE — $120M STOLEN, BTC MEMPOOL ERUPTS

Coldcard hardware wallet exploit just went live—$120M in Bitcoin moved in coordinated transactions that flooded the mempool, forcing fee spikes across the network. Security researchers scrambled to isolate the attack vector while holders rushed to move funds, marking one of the largest single-wallet compromise events in crypto history.

Major security breach with specific dollar amount and immediate on-chain impact.