The White House is investigating the hacking of chief of staff Susie Wiles' phone, where attackers accessed contacts and impersonated her.
Hackers used AI to imitate Wiles' voice in phone calls and sent text messages from a different number.
Authorities are determining if the cloud account associated with Wiles' device was compromised or if a more advanced cyberattack was involved.
This is the second time Wiles has been targeted by hackers, with a previous incident involving Iranian hackers obtaining Vice President JD Vance's dossier.