UK PM Burnham exchanged messages with Trump aide impersonator

British Prime Minister Andy Burnham exchanged messages with an unknown person pretending to be White House chief of staff Susie Wiles, according to multiple officials familiar with the matter. The contacts occurred shortly after Burnham took office in July, and the British embassy in Washington grew concerned enough to alert the White House directly.

Sources told Politico that Burnham sent only a few texts before growing suspicious that the sender was not legitimate. No conversations took place by phone, and officials described the messages as insignificant. Downing Street declined to discuss the incident, citing national security policy. The episode echoes a hack of Wiles personal phone last year that prompted an FBI investigation after impersonators used her contacts to reach senators, governors and business leaders.

The timing raises fresh questions about basic security practices inside the new British government. Burnham secured an early endorsement from President Trump within an hour of arriving at Downing Street. Yet within weeks his office was fielding messages from someone exploiting the same contact list that foreign actors had already targeted. Reports from 2024 showed Iranian-linked groups attempting similar impersonations against Wiles. The fact that a foreign power or criminal network could again reach the leader of a close US ally through a compromised device list points to persistent vulnerabilities that neither side has fully closed.

Previous incidents show the pattern is not isolated. Former foreign secretary David Cameron once took a hoax call from someone pretending to be a Ukrainian president. In the United States, defense secretary Pete Hegseth was faulted in a Pentagon review for discussing operations in a group chat that included an unintended journalist. These lapses occurred under different administrations and different leaders, yet the common thread remains the same: senior officials relying on personal phones and informal messaging without ironclad verification.

Burnham's team insists the exchange was brief and harmless. That defense does little to address why the prime minister's office lacked immediate safeguards against a known impersonation tactic. The British embassy felt compelled to notify the White House, an unusual step that itself signals the level of unease inside diplomatic channels. Officials on both sides have offered no further details on when the messages were sent or what verification steps, if any, were in place at the time.

The episode arrives as transatlantic relations face renewed scrutiny over intelligence sharing and cyber defenses. Wiles herself described the earlier phone breach as an attempt to impersonate a key Trump adviser. That the same vector resurfaced against a newly installed British prime minister suggests the threat was neither contained nor adequately communicated to allied governments. Public statements from London remain limited to the standard refusal to discuss security matters, leaving voters with little clarity on how such contacts are screened in the future.

For an administration that campaigned on restoring competence after years of turbulence, the incident undercuts claims of tightened protocols. Burnham moved quickly to establish personal ties with the Trump White House. Those same ties now appear to have been tested by the kind of low-tech social engineering that intelligence agencies have warned about for years. The public record shows repeated targeting of Wiles contacts and repeated success in reaching high-level figures. Until stronger verification measures are demonstrated, similar attempts will likely continue.