Earlier quoted context omitted.
Terminating access and rotating passwords (if needed) while the person is in the meeting but has not yet found out they are being let go has been SOP for at least the last 20 years
Is this specific to US culture? And what about your work environment makes it such a risk? Where people are laid off here (Norway), they're still employed by law for 3 months. Most companies don't force you to work all that time, but it's pretty common to finish up your tasks, do offboarding etc for a few weeks. Never considered it an issue. Maybe it's a high trust society thing?
It's called garden leave, it's popular everywhere, especially if it's a big international company with diverse workforce, sensitive to IP rights, since there's been plenty of cases of people taking company IP on USB drives to the new employer, like that Indian guy who took IP from Valeo to Nvidia and got his home raided by the police because the Valeo guys saw him share it on a Teams call lol. Same for companies in finance or that handle sensitive information. Norwegian trust doesn't fly anymore when it comes to multinational corpos.
Companies run on liability and risk mitigation. If something bad happened once (IP theft or sabotage from someone they let go), then they have to prevent from ever happening again, not keep blindly trusting people while letting it happen.