“On Tuesday, The Washington Post reported that Waltz and one senior unnamed aide conducted some government business over personal Gmail accounts, including exchanging messages about schedules and work documents — information that can be exploited by foreign intelligence services.” https://www.politico.com/news/2025/04/02/sloppy-reckless-waltz-use-of-signal-gmail-revives-concerns-about-white-house-communications-00268016