Amgen Inc. has disclosed a material cybersecurity incident after identifying unauthorized activity involving data stored in cloud environments hosted by third-party service providers. The company revealed the incident in a Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission (SEC).
According to the filing, Amgen detected the unauthorized activity in July 2026 and immediately activated its cybersecurity incident response plan. The company implemented containment measures and engaged independent cybersecurity forensic experts to investigate the breach.