The forum for the public blockchain-based distributed computing platform Ethereum experienced a data breach in December 2016. This incident resulted in the exposure of a database containing over 16,000 unique email addresses, along with associated IP addresses, private forum messages, and mostly bcrypt hashed passwords. The breach date was December 16, 2016, and the compromised data, including email addresses, IP addresses, passwords, private messages, usernames, and website activity, was publicly disclosed. The breached database has been made publicly available on b1nd, highlighting the severity of the data breach and the potential risks to affected users.