Hackers discovered a security vulnerability in General Bytes' Bitcoin ATMs, which allowed them to read and decrypt API keys to access funds on exchanges and hot wallets. Both General Bytes' cloud services and standalone servers were compromised, and the company has shut down its cloud services. General Bytes has sold more than 15,000 machines in more than 140 countries.

On-chain data shows that there are 56 bitcoins in the Bitcoin wallet associated with the attacker, worth about $1.5 million. (The Block)