BreachCensus

Delta Dental of California

United States of America

Delta Dental of California is an organisation in Hawaii. It appears on the Hawaii Office of Consumer Protection breach-notice list, the Delaware Attorney General data security breach database and the Iowa Attorney General security breach notification list with 2 confirmed incidents; the most recent notice was filed on March 18, 2024.

Data as of October 17, 2026.

Confirmed incident

Filed in HI and IA

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

Disclosed
March 18, 2024

Timeline

  1. March 18, 2024
    Reported to regulator Regulator

    HI AG breach notification: 8,553 Hawaii residents affected

    source
  2. March 18, 2024
    Reported to regulator Regulator

    IA AG breach notification: an unknown number of Iowa residents affected

    source
What a Hawaii notice means

Governed by HRS §487N-2. Notice to the Office of Consumer Protection is required when a breach affects 1,000 or more Hawaii residents.

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

Hawaii breach-notification register ↗

What a Iowa notice means

Governed by Iowa Code §715C.2. Notice to the Attorney General is required within five business days of notifying consumers, for a breach requiring notification to more than 500 Iowa residents.

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

Iowa breach-notification register ↗

Confirmed incident

US-DE

Occurred
May 27, 2023
Disclosed
July 12, 2023

Timeline

  1. July 12, 2023
    Reported to regulator Regulator

    DE AG breach notification: 24,328 Delaware residents affected

    source
  2. July 12, 2023
    Reported to regulator Regulator

    DE AG breach notification: 24,328 Delaware residents affected

    source
  3. July 12, 2023
    Reported to regulator Regulator

    DE AG breach notification: 24,328 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 ↗