Broadstreet HEOR Data Breach: Rhysida Ransomware Claim (Oct 2026)
Summary
In the latest cybersecurity news, Broadstreet HEOR — an organization based in US — has fallen victim to a ransomware attack conducted by the group rhysida. This data breach, discovered on 2026-10-28T12:28:36.839608+00:00, underscores the increasing need for proactive cybersecurity defenses as we continue through 2026.
Incident Report
| Attribute | Information |
|---|---|
| Target Organization | Broadstreet HEOR |
| Threat Group | rhysida |
| Summary | Broadstreet HEOR Broadstreet Health Economics & Outcomes Research (Vancouver, Canada)is a consultancy running health-economics and real-world-evidencestudies for Pfizer, Bayer, Boehringer Ingelheim, Takeda, Madrigal,Alexion/AstraZeneca, Bristol-Myers Squibb, Sarepta, Taysha, Biohavenand others.- US patient PHI: Medicaid (11.3M rows: DOB, race, diagnoses, NDCdrugs, payments), Veradigm/Allscripts EHR tables, licensed IBMMarketScan / Optum Clinformatics data.- Production Alexiondb (PostgreSQL): schema + claims rows.- Live SQL Server credentials of client Taysha Gene Therapies(production DB irsf-nhs-prod-db, public IP).- Confidential pharma materials: unpublished Boehringer Ingelheimslides, Takeda manuscript, Bayer CEM models, Madrigal reports,Pfizer/VA emails.- Staff personal documents. More |
| Date of Breach | 2026-10-28T12:28:11.974277+00:00 |
| Discovery Date | 2026-10-28T12:28:36.839608+00:00 |
| Target Domain | broadstreetheor.com |
| Business Sector | Professional Services |
How to reduce your ransomware risk
Most ransomware intrusions start with a stolen password or a phishing email. A few proactive steps sharply cut your exposure:
- real-time breach alerts — close the gap attackers exploit.
- phishing simulations — close the gap attackers exploit.
Want to know if you’re already exposed? Run a free scan with the HookPhish data breach checker.
Disclaimer
HookPhish does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information. All breach data reported here is sourced from publicly available threat intelligence feeds for awareness purposes only.
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