Cybersecurity incident — 2016-12-21 00:00:00
Affected organization: Tumblr
Affected country: United States of America
Industry: Information
Event type: Disruptive
Event subtype: External Denial of Service
Motive: Undetermined
Actor: R.I.U. Star Patrol
Actor type: Criminal
Actor country: Undetermined

Tumblr goes down for over two hours as a result of a large-scale DDoS attack.