Five Cabinet members are facing a federal lawsuit over the use of Signal to coordinate military strikes in Yemen.

A government watchdog group is suing national security leaders for their use of Signal to discuss military actions, saying ...

Watchdog group American Oversight sued Trump officials after the shocking national security failure exposed by The Atlantic.

A federal judge in Washington ordered Trump administration officials Thursday to temporarily preserve records of a leaked ...

Judge James E. Boasberg, who has already drawn President Donald Trump’s ire, ordered national security agencies to preserve ...

Having that conversation on the commercial app Signal may have been ... shows this particular chat was set to automatically delete messages after four weeks. A law President Barack Obama signed ...

Jeffrey Goldberg, The Atlantic’s editor in chief, brushed off the risk of a legal threat from the Trump administration after ...

A messaging app called Signal based in San Francisco was used by the Trump administration to discuss war plans.

Donald Trump was asked whether he approved of his top advisers using the messaging platform to discuss war plans.

Five high-ranking officials of US President Donald Trump’s administration face a federal lawsuit over the accidental inclusion of a journalist in a Signal chat where officials discussed military plans ...

U.S. District Judge James Boasberg ordered Trump administration officials to preserve communications from the messaging application Signal that featured in the recent scandal stemming from ...