Austin and the DOD heavies are in a CYA mode, denying the leakage came from them. They claim 5000 persons have a right to see the documents, in and out of the department.
I call to your attention though, that the leadership of all our intelligent agencies were involved in a conspiracy to overthrow a duly elected government of the USA - the Trump administration. Personally I have no respect nor confidence in any of them. Recall, too, that 21 of them signed a letter claiming Trump colluded with Russia - a boldface lie!!!! None of them should be trusted.
Those that signed the Trump letter should be permanently stripped of their security clearances. Hit them hard in the wallet.