The hardware wallet holding his keys, a Coldcard, had never been connected to the internet. He kept it stored in a safe deposit box. The seed phrase, which he’d never shared with anyone, was stored in a second safe deposit box. But on July 29, Goodman said, every wallet he had was emptied, every last satoshi stolen. The Toronto entrepreneur reported losing 18.25 bitcoin, worth just over $1.17 million at the time of the attack.