DisclosureLens
FEDERALItem 8.01 · voluntaryMalwareTechnologyManufacturingInformationRansomwareData EncryptedLowActive

MKS Instruments, Inc

bd_91e20ee0c300cf70 · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 3, 2023

Filed

Feb 13, 2023

To disclose

10 days

Affected

Not disclosed

Linked

8 filings

Confidence

69%
Full breach record for MKS Instruments, Inc →2 incidents on file

MKS Instruments, Inc. filed a supplemental 8-K regarding a previously disclosed ransomware event. The incident materially impacted the Vacuum Solutions and Photonics Solutions Divisions' ability to process orders and ship products. The Materials Solutions Division was not impacted. The company is in the recovery phase, working to restore operations. The full scope of costs and impacts, including insurance offsets, has not been determined. No specific data types or individual counts were disclosed in this filing.

Incident timeline

discovery → filing · 10 days

Feb 3, 2023

Discovered

Feb 13, 2023

Filed

vs. sector median

9 wks faster

This filing is one of 8 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Show 3 more filings ↓up to 7d gap

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

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statementThis record

Unlocks: materiality, stated response, full audit trail. Ceiling removed.