Locked on Telegram

What it signals here

sticker mapping

Commonly mapped to security-themed sticker packs; used to indicate encrypted or private chats.

channel use

Used in channel names or descriptions of private/invite-only Telegram channels to signal exclusivity.

group meaning

Indicates a private or restricted group where membership is curated and content is not publicly accessible.

bot context

Used by bots to indicate a feature is locked behind a subscription or admin permission level.

See it elsewhere