Earlier quoted context omitted.
Arguably, but what if the company wants to find proof of, say, two employees colluding to exfiltrate sensitive data or something like that? Would they have to convince them to turn in the PGP signed logs? More generally like the parent I don't see why a company couldn't have full control over their corporate tools.
> two employees colluding to exfiltrate sensitive data or something like that In that case spying Slack usage is simply not enough: the employer should need to spy every single move every employee makes inside and outside the company, which of course it's not possible (well, except if the company is located in a fascist state).
It turns out that having access to slack alone would probably catch 95% of situations.