Breach Disclosure: Webmium
|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/intelligence/advisories/14956
Details
Webmium, a Czech Republic-based digital advertising services company, allegedly suffered a security incident, in which 35,104 email addresses and hashed passwords were leaked, which were subsequently shared on several deep web platforms. Other notable information leaked in this package include name and user activity. The threat actor did not disclose the ultimate source of the data breach or how it was exploited.

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 multi-factor authentication for all of your organizational accounts to help mitigate phishing and credential stuffing attacks
Tags: data breach, media/entertainment, eu/russia