All major VOIP solutions are already cryptographically secured. In this case the attacker was not able to pull off anything akin to a caller ID impersonation, t

All major VOIP solutions are already cryptographically secured. In this case the attacker was not able to pull off anything akin to a caller ID impersonation, they made the call from an unknown number and tried to explain it away: > The Vigna deepfaker began explaining that he was calling from a different mobile phone number because he needed to discuss something confidential