- Signal groups are used for organizing mutual aid and rapid response networks during ICE operations.
- The nicknames feature in Signal helps you identify contacts who use confusing or frequently changing names.
- To set a nickname, tap a contact's avatar, choose 'Nickname', and enter a custom name (end-to-end encrypted).
- When you mention a contact using @nickname, others see the original name, not your nickname.
- Using pseudonyms in Signal profiles is recommended due to risks of infiltrators or device searches.
- Group permission settings (e.g., open links, invites) can allow infiltrators to join and expose identities.