Scarlett Johansson is just the latest celebrity to have her photos leaked on the Internet but it seems hackers have been targeting her and others for a while.

TMZ reported earlier this year that sources revealed the FBI is conducting a large scale investigation into a ring of hackers, and that authorities believe about 50 celebrities may be victims of the hacking ring.

The agents also believed that all 50 celebs trace back to one person, who is possibly the mastermind behind the hacking ring.

The FBI recemtly told the media they have an identity of the person believed to be the main person behind the ring.

FBI spokeswoman Ari Dekofsky has confirmed that the agency is investigating the person or group responsible for hacking celebrities' cell phones.

Due to it being an ongoing investigation, we are not at liberty to confirm specific victims or a number of victims, Dekofsky has said.

Click on the slideshow to see some of the celebrities, mainly young females, targeted by hackers.

Update: FBI Knows Identity of Scarlett Johansson's Nude Pictures Hacker [PHOTOS]

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