Binance Investigates Suspected $6.3 Billion Cyber Attack; $3 billion frozen Binance, the world's largest cryptocurrency exchange, is investigating a major security breach, with its estimated initial impact reaching $6.3 billion. The company says about $3 billion in crypto assets have been frozen so far with the help of industry partners. Binance has temporarily suspended deposits and withdrawals, assuring users that their funds are safe and promising to cover all losses.