The actress is the latest alleged victim of hackers who have published two photos of her naked on several websites on Wednesday morning.
Sources close to Johansson have told TMZ that they planned to contact the FBI as they believe it is a criminal act.
Last March, TMZ reported that a group of hackers hacked into the email accounts of up to 50 A-list actresses and stole their nude photos.
According to reports, the photos come from the same source that had published nude photos of Vanessa Hudgens in 2009 and early 2011.
Jessica Alba, Blake Lively, Rihanna are some of the stars who have faced similar problems with online leaks.