Crypto firms freeze over $3 billion as Binance probes possible hack

Binance, the world's largest crypto exchange, said it is investigating a potential security issue, with founder Changpeng Zhao saying it does look like a hack. Crypto firms had frozen about $3 billion in funds by Thursday evening, including over $1.5 billion by Tether and over $800 million by Circle. Binance has not confirmed any funds were stolen and says user funds are safe.