2013 — Tumblr: Tumblr apparently only just found out about a 2013… 2013 65.0M records affected Share on X Technical writeup Tumblr apparently only just found out about a 2013 data breach, affecting 65m users. Root cause Hacked Referenceshttps://motherboard.vice.com/read/hackers-stole-68-million-passwords-from-tumblr-new-analysis-reveals