Kyle Svara, 26, is accused of getting access to Snapchat access codes for nearly 600 women.
He allegedly got into the accounts of more than 50 women to steal nude images.
Svara is charged with aggravated identity theft, wire fraud, computer fraud, conspiracy to commit computer fraud and false statements related to child pornography, officials said.
A former track and field coach at Northeastern University, Steve Waithe, allegedly hired Svara to hack accounts of women Waithe had coached or had other relationships with. Waithe is currently in prison.
Prosecutors said Svara also allegedly targeted women who resided in or around the area of Plainfield, or who were students at Colby College in Waterville, Maine.
People who may have allegedly been victims of Svara's are asked to contact the FBI.
Svara is scheduled to appear in federal court in Boston on Feb. 4.
ABC News contributed to this report.