Shortcut for systemwide Vault lockdown (app+extensions)

I have often found myself in the position of having someone sitting in front of my screen for a few minutes, to review some of my work or just to fix some technical issue, and I would love to have a keyboard shortcut to immediately lockdown every vault at the same time, both app and browser extension, without having to individually open each program and do so.

Imagine you’re working on a pdf, IT tech pops by to upgrade something, you have a dozen windows open -a true mess- and all you have to do is press CTRL+F+U and there you go! Passwords are safe, IT guy can work their magic while you’re off for some coffee.