A South Florida woman is facing grand theft and fraud charges after allegedly stealing $800,000 worth of cryptocurrency from her ex-boyfriend, leading to her arrest and possible deportation.

Bybit, one of the largest crypto exchanges in the world, said Friday that a hacker took control of one of its digital wallets holding ether and transferred all the tokens to an unidentified address. The attack resulted in more than $1.

Crypto exchange Bybit said it was hacked, resulting in what analysts estimate was the loss of almost $1.5 billion worth of tokens in the biggest theft ever committed in the industry. Researchers believe North Korean hackers were likely responsible.