Hackers stole around $6.3 billion from Binance, the world's largest cryptocurrency exchange, in the largest crypto heist in history, which U.S. blockchain analytics companies TRM Labs and Chainalysis attributed with high confidence to North Korea , Reuters reported on Oct. 30. Stablecoin issuers Tether and Circle and crypto company Ripple swiftly froze around half of the stolen funds, but crypto worth around $3.3 billion remains unaccounted for.