Breach Disclosure: Telegram Users' Data Leak
|by Alpha Team

Standing Intelligence Requirements

For the most up to date list of ZeroFox Threat Research’s Intelligence Requirements, please visit:
https://cloud.zerofox.com/alpha_team/advisories/14956
Details
A user on XSS, a Russian-speaking underground forum, shared a package contaning names, phone numbers, and email addresses, and other fields – with the filename "13 550 555 Telegram users." ZeroFox extracted 1,077,483 email addresses from the package.

Recommendations
- If not already enabled, turn on the compromised credentials rule for all relevant entities and ensure relevant emails are entered for those entities, or reach out to [email protected] for assistance
- If one of your entities receives an alert, ZeroFox recommends immediate password changes for the affected account
- Enable 2-factor authentication for all of your organizational accounts to help mitigate phishing and credential stuffing attacks
Tags: data breach, media/entertainment, global