The most dangerouse thing that people do online is talking to me and following my advice. I make friends with people then ask them how their BIOS is and then check if it needs updated then I insist that they update it and go on and on and on until they Flash their BIOS and so far not one of them has but am sure many have and just not recovered from it so dissapered either that or blocked me.
The other thing is I ask people what OS they using and when they say anything othe than windows 10 I explode and accuse them of trying to infect me by being on a non win 10 pc and comunicating with me and stealing my IP
The last thing is possibly the most dangerouse and that is connecting to people using himachine on a non windos 10 PC those guys THOSE GUYS need to be told to upgrade caue and flash their bios first.
Just people who dont update and use win 10 that I despice with every ounce of my being.