U.S. security officials have reportedly been using their personal Gmail accounts to conduct government business — including sharing sensitive information about military positions. And yes, national security advisor and Signalgate protagonist Michael Waltz was involved.

Senior members of the Trump administration’s National Security Council — including its top national security adviser, Michael Waltz — used Gmail to conduct government business, The Washington Post reported, citing documents and three unnamed government officials.

Last week, National Security Advisor Michael Waltz inadvertently invited a journalist to a Signal chat discussing a planned military strike. Today, a new Washington Post report says that he has also discussed “sensitive military positions and powerful weapons systems relating to an ongoing conflict,” using his personal Gmail account.