US defense chief Lloyd Austin has ordered measures aimed at improving security after a trove of top secret documents leaked online earlier this year, the Pentagon said Wednesday.

The move follows a 45-day review of Defense Department policies and procedures that Austin ordered after a junior airman allegedly orchestrated the most damaging leak of US classified documents in a decade.

“The review identified areas where we can and must improve accountability measures to prevent the compromise of CNSI (classified national security information), to include addressing insider threats,” Austin wrote in a memo released by the Pentagon.
Steps assigned by Austin include developing a plan for a so-called Joint Management Office for Insider Threat and Cyber Capabilities to “improve threat monitoring across all (Pentagon) networks.”

He also called for guidance to be issued to “immediately enhance accountability and control of top secret information,” and for the implementation of a “phased approach to increase accountability, manage access, and increase security to classified data.”

Jack Teixeira, a 21-year-old Massachusetts Air National Guard IT specialist, was arrested in April after allegedly posting a series of highly sensitive documents to a private chat group on social media platform Discord.