MKS Instruments, Inc
bd_a88f0c343179b832 · schema v1 · pii pii-v1
Full breach record for MKS Instruments, Inc →2 incidents on fileMKS Instruments, Inc. disclosed in an 8-K filed February 6, 2023 that on February 3, 2023 it identified a ransomware event. The company activated its incident response and business continuity protocols, engaged incident response professionals, and notified law enforcement. Operations at certain facilities were temporarily suspended. Investigation is ongoing; data types and affected individual counts were not disclosed.
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Incident timeline
Feb 3, 2023
Discovered
Feb 6, 2023
Filed
Linked disclosures
Why this link?Regulatory filings (7) · sorted by filing gap
- SEC 8-Kbd_91e20ee0c300cf702023-02-13 · +7dVerified
- New Hampshire State AGbd_10609a6a1a76f0302023-02-15 · +9dVerified
- California State AGbd_7ab949b29245ba5a2023-02-15 · +9dCandidate
- Massachusetts State AGbd_8661f29e3cdb8e162023-02-15 · +9dVerified
Show 3 more filings ↓Show fewer ↑up to 10d gap
- Maine State AGbd_40fb17ba9f50a3042023-02-16 · +10dCandidate
- Indiana State AGbd_469c34ddf4169c5b2023-02-16 · +10dVerified
- Montana State AGbd_488d1bfaf6139cd52023-02-16 · +10dVerified
Filing propagation · 8 filings · 6 states
View merged incident ↗Pattern: first filing Feb 6, last Feb 16 (MT) — a 10-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.