Earlier today, on a late Friday evening, Disqus confirmed a data breach that appears to have taken place in the summer of 2012, and during which an unknown attacker(s) made off with details for at least 17.5 million user accounts. […]

from https://www.bleepingcomputer.com/news/security/disqus-confirms-2012-data-breach-that-exposed-details-for-17-5-million-users/