"What’s become clear from my years of using Slack at work is that it is, first and foremost, a tool of corporate surveillance. Slack stands for “Searchable Log of All Communication and Knowledge,” after all. Its positive use depends on how much you trust your employer not to read your messages, because yes, they have complete access."
- #MonicaTorres, 2019
https://www.huffpost.com/entry/slack-is-bad-for-privacy_l_5d0bdc05e4b0aa375f49aa23