United States
USA
West Pharmaceutical cyberattack disrupts global manufacturing and shipping
West Pharmaceutical Services detected an intrusion on 4 May 2026 and took systems offline globally. The company confirmed data exfiltration and encryption; manufacturing, receiving and shipping were disrupted across its global operations until all manufacturing, supply-chain and commercial sites were reported operational on 20 May. Its second-quarter filing said production downtime associated with the incident reduced revenue growth by approximately USD 7 million.
89
Estimated severity
89 / 100
96
Source reliability
96 / 100
Approximate Date
2026-05-04
Targeted Company
WEST PHARMACEUTICAL SERVICES
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
No information
Geographic Impact
Country Targeted Company
Other Affected Countries
No other affected countries reported
Target country
United States
Affected countries
No information
Impacted regions
No information
Operational Impact
Duration
16 days
Financial impact (USD M)
$7M
Impact types
Capacity reductionProduction interruptionShipping disruption
Affected sectors
ManufacturingPharmaceuticals & Life Sciences
Affected departments
Distribution & FulfillmentInformation TechnologyProduction & Manufacturing
Attack Profile
Attack types
Data exfiltrationUnauthorized access
Attributed threat actors
No information
Sources
Incident Sources
sec.govhttps://www.sec.gov/Archives/edgar/data/105770/000010577026000077/wst-20260507.htmwestpharma.comhttps://www.westpharma.com/support/company-impact-updates?campaignid=15277155321&creative=562024044907&device=c&matchtype=pinvestor.westpharma.comhttps://investor.westpharma.com/static-files/223a5378-31db-4e0e-9e65-1411523221e2