West Pharmaceutical Services discloses a material cybersecurity incident

What the filing says

On May 7, 2026, West Pharmaceutical Services, Inc. (the "Company") determined that the Company has experienced a material cybersecurity attack, in which certain data was exfiltrated by an unauthorized party and certain systems were encrypted. Upon initial detection of an intrusion on May 4, 2026, the Company promptly activated its incident response protocols, including proactively taking systems offline globally for containment purposes, notifying law enforcement, and engaging external cyber-forensic experts. The Company's investigation into the nature and scope of the incident remains ongoing, including the extent of the data affected.

1. Amended filing · May 20, 00:00 UTC
   8-K/A: As previously disclosed in the Original Report, the Company determined on May 7, 2026 that the Company had experienced a material cybersecurity attack, in which certain data was exfiltrated by an unauthorized party and certain systems were encrypted. Upon initial detection of an intrusion on May 4, 2026, the Company promptly activated its incident response protocols, including proactively taking systems offline globally for containment purposes, notifying law enforcement, and engaging external cyber-forensic experts. Remediation efforts have since progressed, with core enterprise systems restored in addition to critical processes for manufacturing, receiving and shipping restarted at all sit