Air Force finds alleged leak suspect Jack Teixeira acted alone, disciplines 15 others for...

An Air Force Inspector General probe found Teixeira’s unit “failed to take proper action after becoming aware of his intelligence-seeking activities.”

The U.S. Air Force found that Massachusetts Air National Guardsman Jack Teixeira acted alone in allegedly leaking classified documents, but said that there were factors that enabled him to do so and that it has disciplined 15 personnel for “dereliction of duty.”

The results of an Air Force Inspector General investigation released Monday found Teixeira’s unit “failed to take proper action after becoming aware of his intelligence-seeking activities,” but there was no evidence that his supervisory chain was “aware” of the alleged leaks.

The probe found indirect factors that enabled the leak such as a failure to adequately inspect areas under command, inconsistent guidance for reporting security incidents, inconsistent definitions of the “need to know” concept, and a lack of supervision and oversight on night shift operations.