For an allow-list, tap Add handle, enter a Telegram username such as @alice, and check the updated list. The person must already have started Cove. Tap Remove @handle to revoke that sender. An empty allow-list permits no one. The policy belongs to your whole account, not just the active profile.
This controls receiving by Telegram handle. It does not change your wallet address, stop blockchain deposits to that address, or move funds already received. To send USDC to another Cove user, see Transfer, disperse, and collect.
Receive transfers with Everyone and Allow-list only choices; use a safe demo handle.