2013 — Tianya: China's biggest online forum confirmed that private… 2013 40.0M records affected Share on X Technical writeup Jul 2013. China's biggest online forum confirmed that private information for 40 million users had been leaked Root cause Hacked Referenceshttp://www.scmagazine.com.au/News/349585,28-million-clear-text-passwords-found-after-tianya65279-hack.aspx