This happened to us using Flowdock (a Slack competitor), they had a main DB failure, and when a new one was promoted the state was bad, and so "new" employees f

This happened to us using Flowdock (a Slack competitor), they had a main DB failure, and when a new one was promoted the state was bad, and so "new" employees from another company started appearing in our organisation replacing our own employees, they could then read our private messages and access our rooms. https://web.archive.org/web/20220704223244/https://flowdock-resources.s3.amazonaws.com/legal/Flowdock-RCA-For-Incident-On-2020-04-21.pdf https://web.archive.org/web/20220704223244/https://flowdock-... It was really hard for me to find a responsible from Flowdock/Broadcom/Rally Software/CA Technologies to report the leak, but in the end they killed the servers until they got the issues under control. Because of this I mostly share encrypted files over chat, using OpenPGP, but the user experience is terrible for most :(