worm = a self-replicating computer program. It uses a network to send copies of itself to other systems and it may do so without any user intervention through the network.

virus = a self-replicating computer program written to alter the way a computer operates, without the permission or knowledge of the user.

patch = a small piece of software designed to update or fix problems with a computer program. This includes fixing bugs, replacing graphics and improving the usability or performance.

exploit = a piece of software, a chunk of data, or sequence of commands that take advantage of a bug, glitch or vulnerability in order to gain control of a computer system or allow privilege escalation or a denial of service attack

Computer security = a field of computer science concerned with the control of risks related to computer use.



virus or worm writer = genius.

MS = put people into misery and make profit out of it.