National Security Advisor Michael Waltz and a senior aide used personal Gmail accounts for government communications, ...

Senior members of the Trump administration’s National Security Council ... According to the Post, the officials described the national security advisor’s use of personal Gmail accounts as “problematic ...

Mike Waltz, who faced calls to resign over the Signal chat scandal, has sparked new scrutiny with his reported use of Gmail for official work.

Trump's National Security Advisor Mike Waltz went viral for mistakenly adding a journalist to a group message where he and other Trump officials appeared to discuss plans for a military strike.

Mike Waltz's email usage has drawn ire from social media users after it was reported that the Trump administration cabinet ...

Democrats on the Senate Homeland Security Committee say the reported use of Signal and Gmail by national security officials creates major cybersecurity risks.

Trump’s national security adviser is trying to manage his way out of a crisis. But new revelations about his team’s operational security are piling up in the inbox.