Group 1 - Meta is notifying teenage users on Facebook and Instagram about the upcoming social media ban for users under 16, which will take effect on December 10 [1] - As of December 4, Meta will prevent users under 16 from creating new accounts, and existing accounts will be inaccessible until users turn 16 [1] - Once users turn 16, they will regain access to their accounts as they were prior to the ban [1] Group 2 - Determining the age of users under 16 poses a challenge for Meta, as users may not provide accurate age information during sign-up [2] - Digital age verification is difficult to implement safely and effectively, with identity verification services being vulnerable to hacks [2] - Security vulnerabilities in identity verification platforms can lead to severe exposure of personal information, as evidenced by a past incident involving AU10TIX [3]