A keylogger is a type of surveillance software (considered to be either
software or
spyware) that has the capability to record every
keystroke you make to a
log file, usually
encrypted. A keylogger recorder can record
instant messages,
e-mail, and any information you type at any time using your
keyboard. The log file created by the keylogger can then be sent to a
specified receiver. Some keylogger
programs will also record any e-mail addresses you use and
Web site URLs you visit.
Keyloggers, as a surveillance tool, are often used by employers to ensure employees use work computers for business purposes only. Unfortunately, keyloggers can also be embedded in spyware allowing your information to be transmitted to an unknown third party.