BreachCensus

Keystone Tax Services, Inc.

United States of America

Keystone Tax Services, Inc. is an organisation in Delaware. It appears on the Delaware Attorney General data security breach database with 1 confirmed incident; the most recent notice was filed on August 31, 2023.

Data as of October 17, 2026.

Sources

Confirmed incident

US-DE

Occurred
August 28, 2023
Disclosed
August 31, 2023

Timeline

  1. August 31, 2023
    Reported to regulator Regulator

    DE AG breach notification: 1 Delaware residents affected

    source
  2. August 31, 2023
    Reported to regulator Regulator

    DE AG breach notification: 1 Delaware residents affected

    source
  3. August 31, 2023
    Reported to regulator Regulator

    DE AG breach notification: 1 Delaware residents affected

    source
What a Delaware notice means

Governed by 6 Del. C. §12B-102. Notice to the Attorney General is required when a breach affects more than 500 Delaware residents.

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

Delaware breach-notification register ↗

Related

Disclosed around the same time