BreachCensus

MKS Instruments, Inc.

United States of America

MKS Instruments, Inc. is an organisation in Massachusetts. It appears on the Massachusetts Attorney General breach-notification register with 1 confirmed incident; the most recent notice was filed on February 15, 2023.

Data as of September 29, 2026.

Sources

Confirmed incident

US-MA

Disclosed
February 15, 2023

Timeline

  1. February 15, 2023
    Reported to regulator Regulator

    MA AG breach notification: 1,045 Massachusetts residents affected

    source
  2. May 1, 2023
    Litigation filed Court

    RECAP docket 1:23-cv-10948 (mad): Sharma v. MKS Instruments, Inc.

    source

Litigation

What a Massachusetts notice means

Governed by M.G.L. c. 93H. Notice to the Attorney General is required for a breach affecting any number of Massachusetts residents' personal information -- the statute sets no minimum count.

Note: the count is Massachusetts residents only, not a total.

Massachusetts breach-notification register ↗

Related

Disclosed around the same time