Material Cybersecurity Incidents

Added by the SEC in 2023. Filed within four business days of determining that a cybersecurity incident is material. Discloses the nature, scope, timing, and material impact (or reasonably likely impact) on the registrant.

Recent disclosures

• May 11, 2026 21:06 UTC WST WEST PHARMACEUTICAL SERVICES INC cyber

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

• May 11, 2026 20:15 UTC CBFV CB Financial Services, Inc. cyber

  CB Financial Services discloses material cyber incident exposing customer SSNs and DOBs

source · SEC Form 8-K instructions · see methodology