Viruses are one of the most common threats from email. You may also have heard the terms ‘worm’ or ‘trojan’, these are essentially different types of viruses. In essence, a virus is a program or programming code that replicates itself by being copied, or initiating its own copying, to another program, document or part of your computer.
Most viruses spread by enticing people to open an innocent looking email and/or attachment, which actually contains the virus. Viruses are particularly dangerous because they often arrive in emails from people you know, sending themselves on to all of the people in your address book.