Well, after a visit by the BND and confiscation of my PC in 2001, I became a lot more cautious. ( My wife's brother was a sergeant in NATO at the time, which is why the BND investigated his environment )
They didn't like the fact that they were accessing my PC, and my defense program reacted, which gave me access to their PC network as a counterattack and I used their internal messenger to display the message "Who are you and what do you want from me?" Long story short, I got through 16 different security locks within 0.26 seconds.
Fifteen minutes later, two technicians and two military police officers were at the door. I'm just glad I didn't use option 3 of the program, which would have short-circuited their PC.
Since this incident, I have only been using antivirus and access control, and I have my counter programs available externally.
The ADBlockers can automatically trigger these counterattacks if they are inserted into the ads and thus allow them access to your PC.