Failure to complete facial authentication will now suspend existing SIM cards and bar new users from purchasing SIM cards entirely.

The Details: As of today, April 15, Circular 08 governing mobile subscriber information authentication has officially come into effect. The strict new regulation requires SIM owners to complete facial biometric verification via the state-run VNeID application or through their mobile network operators. If they fail to comply, their subscriptions will be suspended after a prescribed deadline.