Keystroke logging

Keystroke logging (often called keylogging) is a technique used by software programmers to record the keys typed by a user. It can be useful to determine sources of error in a software program, for example to recall the keys typed before the software program crashed. This technique is also applied in law enforcement to track a suspect's use of a computer, for example. Unfortunately, it can also be used to provide a means to obtain passwords or encryption keys & thus bypass other security measures. Keyloggers are widely available on the Internet & can be used by anyone for legitimate as well as illegal purposes.