---
title: "What steps prevent SIM-swapping attacks and account takeover on Telegram?"  
description: "What steps prevent SIM-swapping attacks and account takeover on Telegram?"  
author: "Lily Chitlangiya"  
published: 2026-08-27  
updated: 2026-08-27  
canonical: https://answers.mindstick.com/qa/117120/what-steps-prevent-sim-swapping-attacks-and-account-takeover-on-telegram  
category: "Account Security"  
tags: ["telegram", "2FA", "Account Security", "SIM Swap", "Authentication"]  
reading_time: 2 minutes  

---

# What steps prevent SIM-swapping attacks and account takeover on Telegram?

Telegram uses phone numbers as primary account identifiers. During setup or login on a new device, an SMS login code is dispatched. This reliance on SMS makes accounts vulnerable to **SIM-swapping attacks** and SMS interception tactics employed by sophisticated threat actors.

## How SIM-Swapping Attacks Target Telegram

In a SIM swap attack, an adversary tricks a mobile carrier into porting the victim's phone number to a attacker-controlled SIM card. Once completed, the attacker receives the Telegram login SMS code and gains access to all cloud chats immediately.

## Essential Countermeasures

### 1. Enable Two-Step Verification (2FA)

Two-Step Verification adds a local password requirement in addition to the SMS code when logging into a new device. This password is checked on Telegram servers using a SRP (Secure Remote Password) protocol derivative, preventing cloud access even if the SMS is intercepted.

### 2. Active Session Management

Users should regularly inspect and revoke unrecognized logged-in devices under **Settings > Devices**.

### 3. Configure Recovery Email Correctly

Ensure that the secondary recovery email associated with 2FA password resets is protected with strong passwords and physical hardware security keys (e.g., YubiKey).

## Security Question for Discussion

How does Telegram's SRP implementation protect user passwords during Two-Step Verification verification from being intercepted by malicious transit nodes?


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Original Source: https://answers.mindstick.com/qa/117120/what-steps-prevent-sim-swapping-attacks-and-account-takeover-on-telegram

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