A $6.3 billion breach at Binance may be the biggest crypto theft on record, exposing how quickly billions can leave even the world’s largest cryptocurrency exchange and putting exchange security back in focus for investors.

The world’s largest cryptocurrency exchange disclosed the incident on Oct. 29 and said blockchain partners had helped freeze about $3 billion.

If the full loss is confirmed, it would be roughly four times the $1.5 billion Bybit hack from February 2025, according to TRM Labs.

The first question is how so much money could leave a major exchange in such a short time.

How The Money Left Binance In About 20 Minutes

Early findings at Binance point to a compromised engineer’s laptop. Binance believes that access may have let an attacker reach a service container and submit unauthorized withdrawal........

© Forbes