As mentioned above, the use of usernames instead of phone numbers means your account isn’t tied to just one phone. This makes it easier to log in on other devices, allows you to have multiple accounts on the same device, and makes it so you don’t have to share your phone number with someone to add them as a contact in Telegram. Lock Your Conversations Better Bots
Take Control of Telegram Privacy and Security To lock a chat go to Settings->Privacy and Security->Passcode Lock and enable it. Once you create a passcode and enable it, you will be able to lock and unlock your chats by tapping on the lock icon at the top right of the app. Never Share With: Hide your profile photo from specific people. However, with new Telegram updates, they provide two-step verification for your telegram account. That means if you want to login to telegram on another device, it’s required your two-step password to log in. You can also set up it from the Privacy and Security list as I mentioned above.
Lock Your Chats System Default (Android) or System (iOS): Matches the theme to your operating system's current mode. Everyone (default one: Allow everyone to view your profile. Enable Auto-Night Mode 1b Telegram Messenger Tricks
Schedule Messages App Passcode Options
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