West Pharmaceutical Services
Disclosed May 7, 20264 months agoConfirmed
West Pharmaceutical says attackers stole data and encrypted systems
Drug packaging maker West Pharmaceutical Services disclosed in an SEC filing that attackers exfiltrated data and encrypted systems, forcing it to take systems offline globally and pause some manufacturing. The type of data taken was under investigation.
What is known
| People affected | Not stated in the sources we have |
|---|---|
| Disclosed | May 7, 2026 |
| Discovered | May 4, 2026 |
| Attack | Ransomware |
| Data exposed | Internal documents |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| West Pharmaceutical Services Inc Form 8-K/A, Item 1.05 (2026-05-20)sec.gov · SEC filing | SEC filing |
| West Pharmaceutical Services Inc Form 8-K, Item 1.05 (2026-05-11)sec.gov · SEC filing | SEC filing |
| West Pharmaceutical says hackers stole data, encrypted systemsbleepingcomputer.com · News | News |
Notices filed
History of this record
- 2026-09-25 · attack: unknown to ransomware · seed source
- 2026-09-25 · data_types: [] to ["internal-docs"] · seed source
- 2026-09-25 · disclosed: 2026-05-11 to 2026-05-07 · seed source
- 2026-09-25 · discovered: empty to 2026-05-04 · seed source
- 2026-09-25 · summary: empty to Drug packaging maker West Pharmaceutical Services disclosed in an SEC filing that attackers exfiltrated data and encrypted systems, forcing it to take systems offline globally and pause some manufacturing. The type of data taken was under i · seed source
- 2026-09-25 · title: Updated SEC filing on a material cybersecurity incident to West Pharmaceutical says attackers stole data and encrypted systems · seed source
- 2026-09-25 · disclosed: 2026-05-20 to 2026-05-11 · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (SEC 8-K), confirmed by SEC 8-K. Record counts are as reported. Not legal advice.