Typically associated with hackers, computer trespassing is defined as accessing, altering, deleting, damaging, destroying, or disrupting any computer, computer system, computer network, computer program, or data intentionally and without authorization. Computer trespassing can be as simple as a disgruntled employee (or former employee) entering a company’s servers and deleting important files. It may seem like a prank or not a big deal, but it is a federal crime.