Amgen Data Breach Exposes Sensitive Patient Information

Amgen Inc., a California-based biopharmaceutical company, revealed in July 2026 that its data stored in cloud environments had been compromised. The breach involved unauthorized activity and the exfiltration of proprietary company data and patient protected health information.

The incident was confirmed by Amgen's cybersecurity response plan, which was activated on July 2026. Forensic experts were engaged to investigate the breach, and it was later determined that attackers had stolen sensitive information.

Patient protected health information (PHI) and proprietary company data are among the types of information that may have been compromised in the Amgen data breach. The incident may affect patients whose PHI was stored in the affected cloud environments and could lead to an increased risk of medical identity theft and fraud.