(JNS) A U.S. government employee has been arrested and charged for leaking secret files related to Israel’s preparations to retaliate for Iran’s Oct. 1 missile attacks, according to court documents filed on Wednesday, Nov. 13.

The suspect, identified as Asif William Rahman, was indicted last week on two counts of willful retention and transmission of national defense information. FBI agents arrested Rahman in Cambodia on Tuesday.

Rahman, who according to The New York Times “worked abroad” for the CIA, is set to make his first court appearance in Guam later this week.

Court documents said Rahman held a top-secret security clearance with access to sensitive compartmentalized information, which the Times noted is typical for CIA employees who handle classified documents.

The FBI confirmed on Oct. 22 that the agency was investigating the leak. “The FBI is investigating the alleged leak of classified documents and working closely with our partners in the Department of Defense and intelligence community,” it said.

This is “one indication that, for now, the FBI and other investigators are working off the theory that the breach most likely came from a government insider and not from a cyber intrusion,” CNN reported.

At least one of the files appears to have been scanned from an officially printed briefing book, and the pool of people who printed these pages would be relatively small, sources familiar with U.S. intelligence said.

Kirby said that it is not yet known how the documents were leaked and that the Department of Defense continues to investigate the incident.

Axios noted on Oct. 19 that the leak may have been an attempt to “disrupt” Jerusalem’s plans to retaliate against Tehran and revealed close spying by the U.S. on the Jewish state, including with satellites.