Computer security, also known as
cybersecurity or
IT security, is the protection of
information systems from theft or damage to the
hardware, the
software, and to the
information on them, as well as from
disruption or
misdirection of the services they provide. It includes
controlling physical access to the hardware, as well as protecting against harm that may come via
network access,
data and
code injection, and due to malpractice by operators, whether
intentional,
accidental, or due to them
being tricked into deviating from secure procedures.