Breach taxonomy
Summary
On May 1, 2024, Brandywine Realty Trust detected unauthorized access and deployment of encryption (ransomware) to a portion of its internal corporate IT systems. The incident caused disruptions to business applications including financial and operating reporting systems. Certain files were exfiltrated. The company shut down some systems, activated its incident response plan, and engaged leading external cybersecurity experts. Real estate operations continued in all material respects throughout the incident.
Tagging rationale
ThreatUnknown
Filing does not attribute the incident to any specific threat actor → UNKNOWN.
MethodsRansomwareData Exfil
Filing explicitly states unauthorized access and deployment of encryption (ransomware) plus confirms that certain files were exfiltrated (data exfiltration).