what is bulletproof
3. Bulletproof. Bulletproof is a means of keeping files from being deleted, like when you go to a website to download a link and find that the link is dead. When you have a Bulletproof file what you have is a file that cannot be deleted by anyone, or any government because it is now a torrent.ulletproof is a means of keeping files from being deleted, like when you go to a website to download a link and find that the link is dead.