(TIME) A soon-to-be-released government audit says the Navy, in an attempt to reduce costs, let down its guard to risks posed by outside contractors at the Washington Navy Yard and other facilities, a federal official with access to the report tells TIME.

The Navy “did not effectively mitigate access-control risks associated with contractor-installation access” at Navy Yard and other Navy installations, the report by the Department of Defense Inspector General’s office says. Parts of the audit were read to TIME by a federal official with access to the document.

The risks resulted from an attempt by Navy officials “to reduce access-control costs,” the report finds.

 

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