BreachCensus

Advantest America, Inc.

United States of America

Advantest America, Inc. is an organisation in California. It appears on the Massachusetts Attorney General breach-notification register, the California Attorney General breach-notification register and the Vermont Attorney General breach-notification register with 1 confirmed incident; the most recent notice was filed on October 5, 2026.

Data as of October 12, 2026.

Confirmed incident

Filed in CA, MA and VT

The same incident was filed separately with 3 jurisdictions within a few days of each other (CA, MA and VT) — shown here as one incident.

Occurred
January 23, 2026
Disclosed
October 5, 2026

Timeline

  1. October 5, 2026
    Reported to regulator Regulator

    CA AG breach notification: an unknown number of California residents affected

    source
  2. October 5, 2026
    Reported to regulator Regulator

    VT AG breach notification: 8 Vermont residents affected

    source
  3. October 5, 2026
    Reported to regulator Regulator

    MA AG breach notification: 14 Massachusetts residents affected

    source
What a California notice means

Governed by Cal. Civ. Code §1798.82. A copy of the notification must be sent to the Attorney General when a single breach requires notifying more than 500 California residents.

Note: no affected-count is published on this register.

California breach-notification register ↗

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 ↗

What a Vermont notice means

Governed by 9 V.S.A. §2435. Notification to the Attorney General is required.

Note: the count is Vermont residents.

Vermont breach-notification register ↗