DisclosureLens
UnknownGovernment IDFinancial accountHigh

MKS Instruments, Inc

bd_8661f29e3cdb8e16 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Feb 15, 2023

To disclose

—

Affected

1,045state residents only

Linked

8 filings

Confidence

95%
Full breach record for MKS Instruments, Inc →2 incidents on file

MKS Instruments, Inc. reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2023-02-15. 1,045 Massachusetts residents were affected. The report records the breach type as electronic.

Massachusetts clock✓ MA credit monitoring due
⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline — partial

? — ?

Breach window unknown

Feb 15, 2023

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

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 9d gap

Filing propagation · 8 filings · 6 states

View merged incident ↗
SEC 8-KFeb 6 · first
SEC 8-K+7d
New Hampshire State AG+9d
California State AG+9d
Massachusetts State AG+9d · this page
Maine State AG+10d
Indiana State AG+10d
Montana State AG+10d

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 filingThis record

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

SEC 8-K / victim statement

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