• SMS is a popular medium

• SMS can easily be sent from a computer, spoofing a real mobile number as the source

• Most mobile phones are now Internet capable and can open URLs embedded in SMS

• People are willing to click on links that are apparently interesting, especially if they seem to come from someone they know

Although most people have been well trained not to open URLs in emails, when it comes to URLs embedded in SMS "it's a new medium [and] they forget about all the security they have ever learned," he said.

Zwienenberg implied Norman would introduce AV products for BlackBerry, Symbian and Windows Mobile phones during 2007.{moscomment}