Stefan Thomas says he long ago "made peace" with the reality he may never gain access to his $220 million bitcoin fortune.
Cybersecurity experts say such a breach could have dire consequences since the attackers were tweeting from verified, globally influential accounts with millions of followers.
The tweets, which all contain similar wording, included a call to action for readers to transfer cryptocurrency that "will be sent back doubled."
You've heard of cryptocurrency or coins, but now there are also crypto-commodities: all digital, encrypted assets you can buy and invest.
What some might call the future of currency is sitting in the corner of this CellPros shop in Northwest Fresno on Ashlan Avenue, a Bitcoin ATM.