Emma Watson is dangerous -- for your computer. The security software company McAfee named the former Harry Potterstar as the "most dangerous celebrity" to search for online.

Apparently there is a one-in-eight chance that searching for Watson online will lead to a bad site, that could result in the searcher possibly getting a virus or having personal information stolen.

Jessica Biel landed in the number two spot on the list, while Eva Mendes rounded out the top three.

  • Searching for a female celeb online is much more dangerous than looking for a male -- with Jimmy Kimmel as the only man in McAfee's top 20 list.

Check out the top 10 most dangerous celebs:

1. Emma Watson.
2. Jessica Biel
3. Eva Mendes
4. Selena Gomez
5. Halle Berry
6. Megan Fox
7. Shakira
8. Cameron Diaz
9. Salma Hayek
10. Sofia Vergara