2014 — 3M records 2014 Unknown records affected Share on X Data compromisedNames, emails, addresses, and other PII Technical writeup Hacked. 3M records. Root cause Hacked Referenceshttps://www.washingtonpost.com/business/economy/michaels-says-nearly-3-million-customers-hit-by-data-breach/2014/04/18/3074e432-c6fc-11e3-8b9a-8e0977a24aeb_story.html