Senator Maggie Hassan has raised serious security concerns about Trump Mobile, alleging the company failed to obtain required FCC authorization for its international calling services and did not submit a complete robocall mitigation plan. These regulatory lapses compound existing security worries following a data breach affecting over 3,600 customers, with a ransomware group claiming Trump Mobile responded that it had "no team to handle this." Hassan has demanded answers from Trump Mobile's CEO by October 29, though enforcement may be uncertain given FCC Chairman Brendan Carr's close alignment with the Trump administration.