How Can Users Prevent SIM Swapping and Account Hijacking on Telegram?

Because Telegram accounts are bound to phone numbers, attackers targeting phone numbers via SIM swapping attacks can intercept SMS verification codes to gain unauthorized account access.

Step-by-Step Hardening Guide

1. Enable Two-Step Verification (Cloud Password)

Adding a cloud password ensures that even if an attacker intercepts your SMS code, they cannot complete login without your secondary password:

Settings -> Privacy & Security -> Two-Step Verification -> Set Password

2. Active Session Audit

Regularly inspect connected devices and revoke unauthorized or outdated web and desktop sessions:

Settings -> Devices -> Terminate All Other Sessions

3. Hide Phone Number Visibility

Prevent malicious actors from discovering your phone number by setting Phone Number Visibility to My Contacts or Nobody in Privacy Settings.