What's the point of playing if characters aren't safe?

My account was just hacked and all my characters(60, 41 and other alts) were deleted and replaced with a new character named "itsaprankbro". I was playing almost nonstop a week ago and took a small break but I was still logging in everyday just to check guild chat. Logged in just an hour ago and find out all my chars are gone.
Talked to a GM and he said they will not recover my characters because apparently it's my fault because "users are fully responsible for their security" when I only use this computer for gaming, all the addons I ever used were gotten from this site. All my other important accounts like banking, paypal, youtube, etc remain untouched so It's not like it was some keylogger I got from a porn site.
So why should I play again when I know my characters aren't truly safe and are impossible from recovery?.
Talked to a GM and he said they will not recover my characters because apparently it's my fault because "users are fully responsible for their security" when I only use this computer for gaming, all the addons I ever used were gotten from this site. All my other important accounts like banking, paypal, youtube, etc remain untouched so It's not like it was some keylogger I got from a porn site.
So why should I play again when I know my characters aren't truly safe and are impossible from recovery?.