Cyber Incident Victim: Bayerischer Rundfunk
Date:
Feb 2023
Location:
Germany
Summary
A German public broadcaster fell victim to a sophisticated phishing attack involving deceptive emails and professionally forged login pages mimicking its branding, granting attackers temporary access to employee mailboxes. The breach potentially compromised email addresses, contact details, correspondence, and file contents. The organization promptly locked affected accounts, reset passwords, alerted staff and authorities, initiated forensic investigations, and convened a security taskforce. While forensic analysis found no evidence of malware or confirmed data exfiltration, unauthorized access to internal and external communications couldn't be ruled out. The attackers leveraged international IP addresses, indicating high operational professionalism aimed at harvesting credentials for further exploitation.
| CIA Posture | Motives | Tactics, Techniques & Procedures |
|---|---|---|
| Available to members | 1 motive | 1 technique |
| Threat Actors | Type | Location |
|---|---|---|
| 0 actors | Available to members | Available to members |
Description
In early February 2023, Bayerischer Rundfunk (BR) experienced a sophisticated phishing attack targeting its employees. Attackers sent deceptively authentic emails containing professionally forged input masks branded with BR logos, directing recipients to fraudulent login pages. Employees who entered their credentials inadvertently granted attackers temporary access to individual email accounts. The attackers operated from multiple international IP addresses, demonstrating a high level of coordination and professionalism. This unauthorized access potentially exposed internal and external contacts from address books, email correspondence, and other storage locations linked to the compromised accounts. Forensic investigations confirmed the attackers harvested email addresses, contact details, correspondence records, and file contents during the breach. While no evidence of malware installation or systematic data exfiltration was identified, BR acknowledged the impossibility of definitively ruling out data loss due to the nature of the compromise.
Upon detecting the incident, BR immediately implemented containment measures including password resets and account lockdowns for affected users. The organization notified Bavaria’s data protection supervisory authority and filed a criminal report with the State Criminal Police Office (Landeskriminalamt). Internally, BR alerted all staff to the attack, mandated heightened vigilance for phishing attempts mimicking BR branding, and activated a dedicated task force to manage the security response. IT forensic specialists were engaged to conduct a thorough analysis of the breach scope and attack methodology. BR emphasized its existing security protocols, including mandatory employee training programs and regular anti-phishing campaigns designed to mitigate such risks. The broadcaster established a dedicated contact point ([email protected]) for further inquiries and committed to updating stakeholders on new developments in compliance with Article 34 of the EU General Data Protection Regulation (GDPR).