iPhones that are Jail-broken are vulnerable to malware. If you do not know what jail-breaking an iPhone means, then you need not worry as this does not apply to you. The inherit security on the iPhone out of the box is very secure.

A "proof of concept" worm called Rickrolling has recently been spreading on iPhones that have SSH installed and still use the default password. It is not a malicious worm. However, there is now reports of a new worm called iPhone/Privacy.A that uses the same security hole as Rickrolling. The difference is this new one copies any data it wants with no warning.

Let me clarify something. The normal out of the box iPhone is not at risk. This security hole is brought on by unlocking the iPhone and installing 3rd party apps without the normal procedure of buying and downloading from the iTunes app store.

What should you do?

• Don't jailbreak your phone.
• If you insist on jail-breaking it, then research it thoroughly first. The most important thing to do in regards to this type of threat, is to change the root password. To do this, follow the steps outlined by David Martin over at CNET's iPhoneAtlas.