Introduction
Keyloggers are used to observe and record all the keys entered by the user
using the keyboard of the computer. It can either be a software program or
hardware device. The person who has set up the device or software will be
able to see all the keys entered by the user. The software program or the
hardware equipment will be able to find even the passwords and other secure
details of the user as it observes and records all the keys entered by an
user. This can help employers to check that their employees utilize the
company computers only for business use alone. The disadvantage of keylogger
is that user details can also be passed on to strangers or used in some
other unethical manner.