Michael Waltz, the former national security adviser, mistakenly included a journalist in a sensitive chat on Signal during a cabinet meeting, raising concerns about communication practices among senior officials. A photograph captured him using a different messaging app that promotes archiving for record-keeping, which raises compliance questions with federal regulations. Visible contacts on his screen included Vice President JD Vance, special envoy Steve Witkoff, Secretary of State Marco Rubio, and Director of National Intelligence Tulsi Gabbard. The use of encrypted messaging apps like Signal complicates the National Archives' role in preserving governmental records, highlighting the tension between secure communication and the need for transparency in government operations.