Qubes OS
Nothing is hack proof but this is a very secure OS. Every program runs in its own virtual machine so if you get an infection, you just close down the virtual machine and it's gone! I tried it and it works well but I have a shared computer and for the computer illiterate it's not user friendly so I switched back to Mint. It's very demanding as well so you need a good PC and it's not for gaming.
Alt Forums