The Atlantic magazine’s editor in chief was included on a message chain in which top Trump administration officials — including Vice President JD Vance, Defense Secretary Pete Hegseth and national security adviser Mike Waltz — discussed recent strikes against the Houthi terror group in Yemen, in a stunning breach of national security.

Jeffrey Goldberg revealed the jaw-dropping mishap Monday, writing he connected with Waltz on Signal March 11 and was invited to join a chain called the “Houthi PC small group” two days later — before receiving a stream of internal deliberations and operational details.

The bombs fell on the Middle Eastern country March 15, with the Trump administration claiming to have “taken out” multiple leaders of the Iran-backed Houthis.

National Security Council spokesman Brian Hughes told The Post that the Signal chain that included Goldberg “appears to be an authentic message chain, and we are reviewing how an inadvertent number was added to the chain.”

President Trump pleaded ignorance when asked Monday afternoon about the staggering snafu.

“You’re telling me about this for the first time,” the president told reporters. “Having to do with what? What were they talking about?”

White House press secretary Karoline Leavitt later said: “President Trump continues to have the utmost confidence in his national security team, including National Security Advisor Mike Waltz.”

The incident drew bipartisan outcry from Capitol Hill, with Senate Intelligence Committee Vice Chair Mark Warner (D-Va.) writing on X: “This administration is playing fast and loose with our nation’s most classified info, and it makes all Americans less safe.”

“Classified information should not be transmitted on unsecured channels — and certainly not to those without security clearances, including reporters. Period,” added Rep. Mike Lawler (R-NY). “Safeguards must be put in place to ensure this never happens again.”

“I’ve accidentally sent the wrong person a text. We all have,” said Rep. Don Bacon (R-Neb.). “The unconscionable action was sending this info over non-secure networks. None of this should have been sent on non-secure systems. Russia and China are surely monitoring [Hegseth’s] unclassified phone.”

Russian intelligence reportedly has targeted Signal through phishing attempts and a feature that allows the platform on multiple devices.

Hacking a phone also can allow access to Signal without breaking into the encrypted platform itself.

“The thread is a demonstration of the deep and thoughtful policy coordination between senior officials,” Hughes insisted. “The ongoing success of the Houthi operation demonstrates that there were no threats to troops or national security.”