Smartphone security threats likely to rise

(CNN) -- Worms, spam, viruses and hackers -- they're not just for your desktop or laptop anymore. According to internet security experts they could be well on their way into your pocket or purse.
The popularity of smartphones -- like the Blackberry, iPhone, Palm and the emerging Droid -- is on the rise and shows no signs of letting up.
And that's making the phones a sweeter target for online ne'er do-wells looking to, at the very least, cause mischief and, at worst, rip off unsuspecting phone owners.
"It's guaranteed that almost everything we see on a computer will show up on a smartphone -- and some new things," said Jake Widman, a San Francisco-based technology writer and analyst.
Last year, more than 139 million smartphones were sold worldwide, a 13.9 percent increase from 2007, according to the British technology analysis firm Gartner.