Can you write a self-replicating virus in python? I gave it a try.
Have you ever shared a picture of your Danish social security card (in Danish: sundhedskortet) online? Maybe with a finger across to cover the secret number?
Think you’re safe from identify theft? probably not!
If you want to have extra security for your linux machine besides the usual password. Then get yourself a SoloKey or other hardware U2F key and use that as secondary login. Here I give you the description on how to install and configure everything for using Solokeys with your linux. Enjoy!