https://www.bleepingcomputer.com/news/security/coinbase-discloses-breach-faces-up-to-400-million-in-losses/

Coinbase, a cryptocurrency exchange with over 100 million customers, has disclosed that cybercriminals working with rogue support agents stole customer data and demanded a $20 million ransom not to publish the stolen information.

The company said it would not pay the ransom but would establish a $20 million reward fund for any leads that could help find the attackers who coordinated this attack.