Trojan Horses

Trojans or Trojan Horses are programs that appear to be innocuous even beneficial, but are actually harmful. They get this name from the Trojan Horse that was used in a war by the Greeks to gain access to the city of Troy. It looked like a gift of a giant wooden horse, but actually concealed soldiers inside. Much like that horse, these programs appear to benefit you but, turn out to be harmful. The harmful contents could be anything from a virus to a tool which allows outside users to take over full control of your computer. Trojans are designed to cause loss or theft of computer data, or even to destroy the system. Trojans can also be distributed as email attachments, or bundled with other software programs.