Understanding your Substitute Teacher Service, Inc data breach notification letter
If a Substitute Teacher Service, Inc 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
Substitute Teacher Service, Inc. appears to be an educational staffing agency that facilitates the placement of substitute teachers within school districts. As an employer and service provider in the education sector, the company typically collects and maintains sensitive personal data, including Social Security numbers, payroll information, and professional certification records for its staff. In 2025, the company officially reported a data breach to the Delaware Attorney General, indicating that unauthorized parties may have accessed their systems. If you have received a formal data breach notification letter, it means your personal information was likely stored within the affected environment. This notice is intended to inform you of the incident so that you can take appropriate steps to monitor your accounts and protect your identity.
What to do after the letter
Confirm the notice is genuine
A legitimate Substitute Teacher Service, Inc notice references the specific incident reported to the Delaware 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.
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.
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.
Check the record against the public filing
You can verify the Substitute Teacher Service, Inc incident against the filing reported to the Delaware Attorney General. This registry summarizes what was filed; it does not provide legal advice.
This page summarizes a data breach reported to the Delaware Attorney General for informational purposes. DataBreachInformation.com is a neutral reference registry and does not provide legal advice.