Oh, social engineering.
Tell him to fuck himself and avoid further contact, "reporting to the police" sounds good in papers but not very effective IRL IMHO.
Change your passwords (perhaps he knows already some of your passwords, hence the threat)
Don't use stupid passwords.
Avoid fishy things sent by "strangers", don't fall for social engineering tricks.
Check your PC for possible backdoors and keyloggers (just run some Malwarebytes)
Use 2FA everywhere.
Don't type passwords in a place where he may have installed a camera (like his house, perhaps)
Avoid storing your passwords in plaintext anywhere.
And that is it for the paranoid part.
Most probably, just empty threats from a loser.
Tell him to fuck himself and avoid further contact, "reporting to the police" sounds good in papers but not very effective IRL IMHO.
Change your passwords (perhaps he knows already some of your passwords, hence the threat)
Don't use stupid passwords.
Avoid fishy things sent by "strangers", don't fall for social engineering tricks.
Check your PC for possible backdoors and keyloggers (just run some Malwarebytes)
Use 2FA everywhere.
Don't type passwords in a place where he may have installed a camera (like his house, perhaps)
Avoid storing your passwords in plaintext anywhere.
And that is it for the paranoid part.
Most probably, just empty threats from a loser.