One of the recent technologies that aid spying (to put it bluntly) is through keylogging. What is this? Keystroke logging or keylogging is the process of noting the keys struck by a user from a keyboard, which is done in a very covert manner so that he is unaware that the information he is entering into the computer are recorded or monitored. As you can imagine, this kind of tool offers tremendous opportunities for hackers. At the same time, this can also give your system a very tight security.