The anonymous CynoSure Prime cracktivists reversed 320 million hashed passwords dumped to the popular researcher Troy Hunt. The researchers were able to recover all but 116 of the SHA-1 hashes, a roughly 99.9999% success rate The longest password we found was 400 characters, while the shortest was only 3 characters. Hunt is working with the CryptoSure Prime group to purge the data from the hashed lists hosted at HaveIBeenPwned.”]
Source: https://securityaffairs.co/wordpress/62681/hacking/320-million-hashed-passwords.html