Encrypted Chats lost in matrix.org hacking

Confirmation in the press of the matrix.org hack: https://www.infosecurity-magazine.com/news/matrix-compromised-through-known-1/

https://matrix.org/blog/2019/04/11/security-incident/

https://www.zdnet.com/article/matrix-hack-forces-servers-offline-user-credentials-leaked/

https://securityaffairs.co/wordpress/83751/data-breach/matrix-org-hack.html

https://www.securityweek.com/attacker-offers-advice-matrixorg-after-hacking-its-systems