{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-24-133132","form_type":"8-K","ticker":null,"cik":"0001060386","company_name":"BRANDYWINE OPERATING PARTNERSHIP, L.P.","filed_at":"2024-05-07T23:59:59+00:00","discovered_at":"2026-05-14T18:03:17.120289+00:00","generated_at":"2026-06-02T15:45:24.940807+00:00","sec_items":["1.05","5.02"],"event_type":"cyber","sentiment":"negative","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Brandywine Realty discloses ransomware incident with exfiltrated files; trustee resigns","bullets":["Cybersecurity incident detected May 1, 2024; unauthorized access and encryption of internal IT systems.","Third-party exfiltrated certain files; extent of personal information still under investigation.","Incident disrupted access to financial and operating reporting systems; containment achieved and restoration underway.","Company expects no material impact on financial condition or operations; real estate operations continued.","Terri Herubin resigns from board effective May 31, 2024 due to new firm's employment restrictions."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-24-133132","json":"https://secwatch.observer/filing/0001193125-24-133132.json","markdown":"https://secwatch.observer/filing/0001193125-24-133132.md","text":"https://secwatch.observer/filing/0001193125-24-133132.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1060386/000119312524133132/0001193125-24-133132-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/790816/000119312524133132/d824906d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-02T15:45:24.940807+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"f5c7c8cc9c5cced9e3cda1bf952bd53f101c4b2c","claim":"BRANDYWINE OPERATING PARTNERSHIP, L.P. disclosed a cybersecurity incident: unauthorized access and deployment of encryption by a third party to a portion of the Company's internal corporate IT systems, with exfiltration of certain files. Impact: disruptions to and limitation of access to portions of business applications supporting operations and corporate functions, including financial and operating reporting systems; no material impact on operations or financial condition to date. Company determined it not material. Discovered 2024-05-01.","evidence_excerpt":"the incident has not otherwise had a material impact on the Company’s operations. As of the date of this filing, the Company does not believe the incident is reasonably likely to materially impact the Company’s financial condition or results of operations.","evidence_source":"SEC 8-K Item 1.05","evidence_url":"https://www.sec.gov/Archives/edgar/data/1060386/000119312524133132/0001193125-24-133132-index.htm","confidence":0.9,"family_label":"Cybersecurity Incidents","details":[{"label":"Nature","value":"unauthorized access and deployment of encryption by a third party to a portion of the Company's internal corporate IT systems, with exfiltration of certain files"},{"label":"Impact","value":"disruptions to and limitation of access to portions of business applications supporting operations and corporate functions, including financial and operating reporting systems; no material impact on operations or financial condition to date"},{"label":"Materiality","value":"not material"},{"label":"Discovery","value":"2024-05-01"}],"fact_type":"cyber_incident"},{"claim_id":"3abb3d0109","claim":"Terri A. Herubin resigned as Trustee at BRANDYWINE OPERATING PARTNERSHIP, L.P..","evidence_excerpt":"On May 3, 2024, Terri A. Herubin notified the Company of her resignation from the Company’s Board of Trustees (the “Board”), effective May 31, 2024.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1060386/000119312524133132/0001193125-24-133132-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Trustee"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}