EDIT: I thought the "If I can't" portion read "If I can" in parent's comment. Disregard, sorry parent.
It's just creating "plausible deniability."
> or look internally to figure out what makes you think this way.
That's easy: Sarbanes-Oxley.
They could just not want to be even considered a candidate for blame.
For example, if I was ever asked to babysit someone, I would want them to install a camera pointing at me at all times, for my sake and their peace of mind.
I don't read any implied threat that they actually intend to or think they might do something harmful, just wanting a CYA in the same way the company wants one.
"If I can't get in, they can't blame me if something goes wrong down the road."
as
"If I can get in, they can't blame me if something goes wrong down the road."
That's the only interpretation that sounds threatening.
Yep, they confirmed it.
It's the same here. If I'm fired from a tech job, the company should do the right thing to protect themselves and lock me out right then and there. It's not because I -- the real me, not the hypothetical villainous me -- pose a risk to them. I wouldn't hurt an ex employer under any circumstances because 1) that's a bad thing to do, and 2) I don't want to be in jail. It's more that best practice dictates they do this. There's no benefit to them whatsoever in allowing me into systems I no longer have a legitimate need to access.
And again, this also protects me. If I'm long gone and something suspicious happens, talk to their current employees, not me. I don't want to access to their stuff, and I couldn't even if I wanted to.
Edit: Ah, honest mistake. I could see why you'd think that given the misreading.
Apparently they had setup their Exchange server poorly and I'd had access to any number of mailboxes (including the CEOs) and other folders that I wasn't supposed to have access to. I was completely unaware of this access, but was being directly accused of having access confidential information.
I insisted, truly, that I wasn't aware of the access and hadn't looked at anything confidential, but they tried to tell me they had proof that I had accessed email I shouldn't have. At this I got upset and demanded they show me this proof, which they couldn't do because they didn't have any, but I'm guessing they thought I had seen some stuff and they could get me to cave it if they pretended they had proof.
Anyways, I didn't get in any real trouble because I wasn't intimidated, but it damaged the relationship and I ended up quitting a few months later. Now I feel the same way as OP, I don't want to be in a position where someone can make a plausible accusation of misconduct, you could be totally honest and still end up railroaded just for being in the wrong place at the wrong time. CYA.
This is a failure of the company.
An inhumane offboarding would only encourage this.
Unless, of course, our interpretation of inhumane measures is very different.
Theyrevinhumane for more than just security
Literally just revoke the credentials. If you want to be extra, don't be surprised if you find your company source repos on the dark web, for Justice and Profit.