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See the full Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center) breach case facts
MonitoringCaliforniaFiled May 28, 2026

Understanding your Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center) data breach notification letter

If a Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center) letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.

Why you received this letter

Harbor Developmental Disabilities Foundation, operating as Harbor Regional Center, filed a data breach report in May 2026 after discovering a security incident on March 6, 2026. This incident involved the potential exposure of sensitive client information, including Full Name, Date of Birth, and Medical Record Number, which could affect individuals served by the California agency.

Information the filing reports as involved

  • Full Name
  • Date of Birth
  • Social Security Number
  • Medical Record Number
  • Diagnosis and Treatment Information
  • Health Insurance Policy Details
  • Address and Contact Information
  • Service Coordination and Regional Center File Data

What to do after the letter

  1. Confirm the notice is genuine

    A legitimate Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center) notice references the specific incident reported to the California Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.

  2. Keep the letter — it is your proof of connection

    The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.

  3. Protect your accounts and credit

    Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.

  4. Check the record against the public filing

    You can verify the Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center) incident against the filing reported to the California Attorney General. This registry summarizes what was filed; it does not provide legal advice.

This page summarizes a data breach reported to the California Attorney General for informational purposes. DataBreachInformation.com is a neutral reference registry and does not provide legal advice.

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