The Pentagon has told journalists they must agree not to disclose unauthorized information or else risk losing access to the building.
The change is among a number of new restrictions, which also seek to impose limits on the movement of journalists within the facility, which is home to the Department of War, formerly known as the Department of Defense.
It follows a series of leaks in recent months.
Pete Hegseth, who was recently given the new title of Secretary of War, stated on social media: The 'press' does not run the Pentagon — the people do. The press is no longer allowed to roam the halls of a secure facility. Wear a badge and follow the rules — or go home.
The new restrictions were outlined in a briefing note sent to members of the press, which they will be required to sign in order to maintain their Pentagon press credentials.
The department expressed its commitment to transparency while emphasizing that Department of War information must be approved for public release by an appropriate authorizing official even if unclassified.
It emphasizes that signatories will acknowledge that determinations on press credentials may be based on unauthorized access or attempted unauthorized disclosure of classified national security information.
Chief Pentagon Spokesman Sean Parnell remarked that the guidelines reaffirm standards already in line with other military bases across the country, labeling them as necessary to protect sensitive information and ensure national security.
Hegseth, however, has faced scrutiny for his handling of sensitive information, particularly regarding a group chat involving a journalist that included details about a bombing in Yemen.
The administration reportedly reacted in anger when a leaked intelligence report appeared to contradict earlier statements regarding damage from US strikes on Iran's nuclear program.
