Telegram allows you to secure your account with two-step verification. This lets you add a second password, which you’ll need to use whenever you log in to your Telegram account. Here’s how you can enable two-factor verification in Telegram easily.
By default, logging in to Telegram requires you to use a one-time password (OTP) sent over SMS or through a Telegram message to another device where you’ve previously logged in. However, to better secure your Telegram account, you should use the two-step verification feature in the app.