A US Secret Service agent assigned to Vice President JD Vance’s security detail is under investigation over allegations that sensitive operational security information was leaked. The case matters because any compromise of protective information could affect the safety of the vice president and the integrity of Secret Service operations.

Secret Service communications chief Anthony Guglielmi said the agent, from the Vice Presidential Protective Division, faces an administrative investigation and a potential criminal inquiry. The agency did not disclose the alleged information involved or provide further details about the case.