Okay, i have always thought i knew this, but saw a post that totally contradiced that, so i want to get this clear: How safe is a VPN?
Assume VPN does not log any kind of information, and are flawless in their service.
So, let's say, worst case scenario: You hacked the FBI and CIA database and stole all the information, and in addition to that, you hacked the air force's computers, and crashed a bunch of drones. FBI "knows" it was you, but needs proof. Both FBI and ISP is cooperating to find proof that you did it, but you used a VPN that does not keep logs. Would they ever be able to find out what you did while you were using your VPN? If yes, please explain what extra measure of security that needs to be added or what you need to avoid to be 100% secure.
I know a guy from lulzsec got caught for hacking but he used hidemyass, who do keep logs.