DataBreachLegalCenter.com
MonitoringMarylandFiled March 17, 2025

Understanding your Mark Thomas data breach notification letter

If a Mark Thomas letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.

This breach is real, not a scam. Mark Thomas officially reported it to the Maryland Attorney General on March 17, 2025.

Reviewed by David S. Harris, Esq., data breach and class action attorney (Florida Bar No. 0112739). Free consultation: 786-306-7278

Why you received this letter

Mark Thomas, a Maryland legal and professional services firm, reported a data breach impacting highly sensitive client information. This incident potentially exposed Full Name, Social Security Number, and Financial Account Details, among other records, leaving individuals vulnerable to identity theft and fraud. If you received a notification, understanding these risks and your next steps is important.

Information the filing reports as involved

  • Full Name
  • Social Security Number
  • Date of Birth
  • Home Address
  • Financial Account Details
  • Tax Return Information
  • Legal Correspondence and Case Files
  • Direct Deposit Information

Mark Thomas data breach notice and letter questions

Is the Mark Thomas data breach letter legit or a scam?
A notice from Mark Thomas in the mail matches the breach Mark Thomas reported to the Maryland Attorney General on March 17, 2025. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact Mark Thomas through a phone number or website you find yourself.
Where can I see the official Mark Thomas breach notice?
Mark Thomas's report is published by the Maryland Attorney General: https://oag.maryland.gov/resources-info/Pages/security-breach-notices.aspx#ITU-376560 Compare it with the letter you received to confirm the dates and details match.
How many people were affected by the Mark Thomas data breach, and what was exposed?
The filing does not give a count of affected people and lists the following information as involved: Full Name, Social Security Number, Date of Birth, Home Address, Financial Account Details, Tax Return Information, Legal Correspondence and Case Files, Direct Deposit Information. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Did Mark Thomas offer free credit monitoring?
Check your letter from Mark Thomas. If free credit or identity monitoring is offered, the enrollment code and deadline are printed in the notice itself. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Enrolling does not give up your right to bring a claim.
What should I do after getting the Mark Thomas data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
Is there a Mark Thomas data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against Mark Thomas. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
Do I need a Mark Thomas data breach lawyer or attorney?
Talking to a data breach attorney costs nothing here. A lawyer can read your notice, explain your rights under your state's law and tell you whether a claim makes sense.
How much could a Mark Thomas data breach settlement or claim be worth?
There is no set amount, and no Mark Thomas settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. The filing lists Full Name, Social Security Number, Date of Birth as involved. Keep receipts and records; they're what damages claims are built on.
Can I sue Mark Thomas over the data breach?
It depends on what was exposed, the law in Maryland and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.

What to do after the letter

  1. Confirm the notice is genuine

    A legitimate Mark Thomas notice references the specific incident reported to the Maryland 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. Find out whether you have a claim

    Whether the Mark Thomas breach gives you a legal claim depends on the facts. A free, no-obligation case review will tell you where you stand — there is no cost and no commitment to find out.

This page summarizes a data breach reported to the Maryland Attorney General for informational purposes and is attorney advertising. It does not create an attorney-client relationship. DataBreachLegalCenter.com does not provide legal advice through this page.