Jessica Biel is now the most dangerous celebrity on the web. According to McAfee’s Third Annual Report, she has taken over Brad Pitt this year to be the biggest draw on the Internet for spyware, adware, malware, spam, phishing, and viruses. Search for her name online, and there's a one in five chance you'll catch something nasty.

Fans searching for “Jessica Biel” or “Jessica Biel downloads,” “Jessica Biel wallpaper,” “Jessica Biel screen savers,” “Jessica Biel photos” and “Jessica Biel videos” have a one in five chance of landing at a Web site that’s tested positive for online threats, such as spyware, adware, spam, phishing, viruses and other malware. Searching for the latest celebrity news and downloads can cause serious damage to one’s personal computer.

Every day, cybercriminals use celebrities’ names and images, like Kim Kardashian and Rihanna, to lure surfers searching for the latest stories, screen savers and ringtones to sites offering free downloads laden with malware.

“Cybercriminals are star watchers too – they latch onto popular celebrities to encourage the download of malicious software in disguise,” said Jeff Green, senior vice president of McAfee Avert Labs. “Consumers’ obsession with celebrity news and culture is harmless in theory, but one bad download can cause a lot of damage to a computer.”

Source: newsroom.mcafee.com

15 Most Dangerous Celebrities  (from here)

1. Jessica Biel
Major buzz about her figure and high-profile relationship with Justin Timberlake makes Jessica Biel an easy target for spammers and hackers. When “Jessica Biel screensavers” was searched, almost half of the sites were identified as containing malicious downloads with spyware, adware and potential viruses.

2. Beyoncé
Beyonce tops the MTV Video Music Award nominee list and McAfee’s results as the most frequent, highly-ranked celebrity. Inputting “Beyoncé ringtones” into a search engine yielded a dangerous Web site linking to a distributor of adware and spyware.

3. Jennifer Aniston
Hollywood’s favorite leading lady should be searched with caution. More than 40% of the Google search results for “Jennifer Aniston screensavers” contained nasty viruses, including one called the “FunLove virus.”

4. Tom Brady
The New England Patriot seems to attract many fans who want a free download of the athlete in action, but not the Trojan that comes with it, as identified by McAfee SiteAdvisor technology.

5. Jessica Simpson
Jessica Simpson is as dangerous to search online as she is famous. Searching for “Jessica Simpson videos” can mislead unsuspecting surfers to sites with potentially damaging downloads.

6. Gisele Bundchen
The world’s highest-paid supermodel is a popular target for cybercriminals. A search for “Gisele Bundchen photos” can direct users to red-ranked sites that breached browser security in McAfee’s tests.

7. Miley Cyrus
Cybercriminals are using Web sites related to Miley Cyrus’ image to link to other harmful sites containing spyware.

8. Megan Fox, Angelina Jolie
Both tabloid fixture Megan Fox and American icon Angelina Jolie resulted in an equal number of risky download Web sites, proving cybercriminals are in the business of capitalizing on the world’s most famous faces.

9. Ashley Tisdale
The “High School Musical” star is a popular search term when it comes to searching for screensavers. A host of screensaver Web sites contained numerous malware-laden downloads.

10. Brad Pitt
Appearing in the top spot last year, Brad Pitt fell towards the bottom of this year’s list, resulting in a few less, but just as dangerous, red and yellow-ranked Web sites.

11. Reese Witherspoon
Risky Web sites were identified when searching for “Reese Witherspoon” and “Reese Witherspoon photos” promoting free files with hidden malware.

12. Britney Spears
McAfee SiteAdvisor technology found a single site promoting free Britney Spears wallpaper that was embedded with more than 50 potentially infected downloads.

13. Rihanna
Free Rihanna ringtones are some of the most sought after, but some shady vendors mislead those who subscribe by gathering and selling their personal information.

14. Lindsay Lohan
McAfee SiteAdvisor flagged Lindsay Lohan screen saver sites as offering a combined 50+ free screen savers infected with Trojans, viruses and spyware.

15. Kim Kardashian
The biggest reality star in recent months is now susceptible to Internet lurkers too. A search for Kim Kardashian wallpaper and screen savers generated numerous downloads veiled with malware.