Use Telegram on your phone

You have Telegram on your phone

Scan QR, then tap "Start" in the opened bot
This QR code is secure and will expire after a short time for your safety.

Use Telegram Desktop

Use Telegram App

You have Telegram Desktop installed

If you have Telegram App installed

Open Telegram App
Open the link, then press "Start" in the opened bot
Your data is encrypted and the authentication process is completely secure.