Not just Signal: Michael Waltz reportedly used Gmail for government messages
More damaging reports for Trump official who invited journalist to Signal chat.

National Security Advisor Michael Waltz and a senior aide used personal Gmail accounts for government communications, according to a Washington Post report published yesterday.
Waltz has been at the center of controversy for weeks because he inadvertently invited The Atlantic Editor-in-Chief Jeffrey Goldberg to a Signal chat in which top Trump administration officials discussed a plan for bombing Houthi targets in Yemen. Yesterday's report of Gmail use and another recent report on additional Signal chats raise more questions about the security of sensitive government communications in the Trump administration.
A senior Waltz aide used Gmail "for highly technical conversations with colleagues at other government agencies involving sensitive military positions and powerful weapons systems relating to an ongoing conflict," The Washington Post wrote.