The Bybit cryptocurrency exchange said it was hacked on Friday.Bybit CEO Ben Zhou said the estimated loss stood at $1.5 billion.Analysts say it may be the biggest crypto hack ever. Here's what we know.

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.