In mid-2015, the Dutch Minecraft site ServerPact was hacked and 73k accounts were exposed. Along with birth dates, email and IP addresses, the site also exposed SHA1 password hashes with the username as the salt.
Accounts breached: 73587
Breached on: January 01, 2016
Exposed data: Dates of birth, Email addresses, IP addresses, Passwords, and Usernames
Added on: September 06, 2016