BreachCensus

Equifax, Inc.

Professional ServicesUnited States of America

SEC EDGAR CIK 0000033185

Equifax, Inc. is a professional services organisation in California. It appears on the California Attorney General breach-notification register and the Washington State Attorney General breach-notification register with 1 confirmed incident (2 filings); the most recent notice was filed on September 7, 2017.

Headquarters
Atlanta, United States
Employees
On file, but no reporting date recorded
ISIN
US2944291051
LEI
5493004MCF8JDC86VS77
Wikidata
Q5384453

Data as of September 12, 2026.

Sources

Confirmed incident

Filed in CA and WA — Hacking/IT Incident

The same incident was filed separately with 2 jurisdictions within a few days of each other (CA and WA) — shown here as one incident.

Occurred
May 13, 2017
Disclosed
September 7, 2017

Timeline

  1. September 7, 2017
    Reported to regulator Regulator

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

    source
  2. September 7, 2017
    Reported to regulator Regulator

    WA AG breach notification: 3,243,664 Washington residents affected

    source

Litigation

  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.
  • Possible litigation — multiple candidate dockets found, not yet resolved to a single case.
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 Washington notice means

Governed by RCW 19.255.010. Notice to the Attorney General is required when a breach affects more than 500 Washington residents.

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

Washington breach-notification register ↗

Related

Same sector and location

Disclosed around the same time