[elabajaba]

If it has a camera, it can be used to steal your security keys if it can see the power LED on your device (or potentially even just if something connected to your device has a power LED).

https://www.nassiben.com/video-based-crypta

[reaperducer]

Fortunately, none of my computers have power LEDs. Also, I don't live in a nuclear weapons facility where I need "security keys."

[two_handfuls]

Security keys are a software thing, not a physical thing like in movies. They are used everywhere, like in ssh or OAUTH.