West Pharmaceuticals discloses material cyberattack; data exfiltrated, systems encrypted on May 4 2026

WEST PHARMACEUTICAL SERVICES INC

• Incident detected May 4, 2026; determined material on May 7, 2026.
• Unauthorized party exfiltrated data and encrypted systems; company took systems offline globally for containment.
• Engaged Palo Alto Networks' Unit 42 for investigation, containment, and recovery; law enforcement notified.
• Business operations temporarily disrupted globally; core systems restored, but shipping/receiving/manufacturing restarted at some sites only.
• Financial and operational impact not yet determined; investigation ongoing.

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