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Numerous reports have surfaced over the weekend regarding the first iPhone worm spotted in the wild. The worm, known as iKee, only affects modified handsets also known as "jailbroken" devices. These devices have been hacked by their owners to allow for the installation of unapproved, third-party programs that aren't allowed in the iTunes App Store.

Currently, the worm doesn't appear to be all that malicious - it simply changes the phone's background image to a photo of singer Rick Astley, the man whose song "Never Gonna Give You Up" has become a well-known internet meme called "rickrolling," a joke where users are tricked into clicking links that redirect them to Astley's YouTube video.

Despite the relatively innocuous nature of this particular attack, it may be the precursor to future attacks of a more malicious nature. But how dangerous will these attacks be to the iPhone-owning population as a whole? Is there really a need for concern?

Thanks to the popularity of social networking sites like Facebook and Twitter, it's a given that malicious hackers will devise ways to exploit the sites' numerous users in order to infect their computers with malware. This unwanted software is designed to do a number of terrible things ranging from identity theft to turning computer into remote-controllable "zombie" machines.

Without sufficient anti-virus and malware protection programs installed, social networking users can easily become victims to these ever-evolving attacks. However, the best way to avoid becoming a victim yourself is to be aware of what's out there and what sorts of things you should avoid. Below are the best practices which you should use on Facebook and Twitter in order to keep yourself safe.

Recently, Roger Thompson, chief research officer at security firm AVG, discovered over half a dozen Facebook applications that had been compromised by malicious hackers. Although the apps' reach was small with relatively few users being affected, Thompson was concerned because it was the first time he had seen apps themselves hacked as opposed to something like Facebook profile pages, a common target for the still-spreading Koobface worm.

While this incident alone wouldn't generate much excitement given the low-profile nature of the applications affected, it's not the only example of unsafe applications on Facebook. Another researcher just spent an entire month scouring Facebook apps for security vulnerabilities and what he found is disturbing: six of the hacked apps were in the top ten, 9700 applications were affected, and the potential victims totaled 218 million users.

Researchers at Kaspersky Lab have recorded a mass mailing of spam emails containing a link to a video advertisement on YouTube. Although in the past, spammers have attempted to lure people into clicking links by claiming the link would display a YouTube video, this is the first case in which the link actually does point to YouTube. In this particular incident, the video in question is a Russian ad promoting industrial real estate.

Company calls customers in attempt to sell paid version of mobile app

Within iTunes' user ratings section of iPhone application mogoRoad, a real-time traffic monitoring tool available in Switzerland, several users claim to have received phone calls from the development company behind the mobile software. Reportedly, the company is asking the app owners if they would like to purchase the paid version of the application. While unsolicited sales calls are annoying and intrusive, the bigger issue here is how did the company get its customers' phone numbers to begin with? According to mogoRoad, the information came from Apple.

It's seems like every virus produces a list of capitalistic charlatans. During the Bubonic plague, thousands spent their hard earned savings on worthless talismans in the hopes of avoiding the Black Death. The song "Ring Around the Rosy" even documents the myth that a "pocket full of posies" could ward off the disease. Today's modern day talisman comes in the form of a fake anti-virus software. According to John Leyden's recent Register article, fake software is being peddled to users who believe their systems are infected with the Facebook Fan Check Virus.