DataBreachLegalCenter.com
Investigation OpenMassachusetts AG filing · July 14, 2026

MJMS Family Office and Madden, Jiganti, Moore & Sheridan Data Breach

MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP recently announced a data security incident affecting personal information. If you received a notification letter, it means your private data may have been exposed through their systems. Understanding this event is the first step toward protecting yourself from potential misuse.

This breach is real, not a scam. MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP officially reported it to the Massachusetts Attorney General on July 14, 2026.

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

Received a MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP notification letter? Find out in minutes if you qualify for compensation.

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State
Massachusetts
Reported
July 14, 2026

MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP have publicly acknowledged a data security incident. On July 14, 2026, these Massachusetts-based firms reported the event, which may have led to the compromise of personal information. If you have received a data breach notification letter from either entity, it confirms that your data was involved.

These firms operate in specialized legal and financial services, routinely handling a significant volume of highly confidential client information. Given the nature of their work, they are custodians of sensitive personal details, making their systems attractive targets for sophisticated cyber threats. The notification you received indicates that unauthorized access to their network infrastructure occurred.

While the specific details of the breach type and the exact categories of personal information involved have not been publicly disclosed, the fact of the notification letter means your data was exposed. Such incidents often involve unauthorized access to stored digital records, potentially allowing bad actors to view or acquire private client information.

If your information was affected, it's wise to take proactive steps. Remain vigilant for any unusual activity across your online accounts and financial statements. Consider changing passwords for critical accounts and be cautious of unsolicited communications, especially those requesting personal or financial details. These general precautions can help reduce your risk after any data exposure.

Receiving a data breach notification letter from MJMS Family Office Services LLC or Madden, Jiganti, Moore & Sheridan LLP establishes your potential legal standing. Under privacy laws, entities entrusted with your data have a duty to protect it, and a breach may indicate a failure in those protections. You do not need to prove immediate financial loss to explore your options.

We offer a free, no-obligation case review to help you understand your legal rights following this data breach. Our experienced team can assess your situation and explain how you might proceed.

What to do if you were affected

These general steps can help limit the risk of identity theft and fraud after any data breach.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP data breach notice and letter questions

Is the MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP data breach letter legit or a scam?
A notice from MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP in the mail matches the breach MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP reported to the Massachusetts Attorney General on July 14, 2026. 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 MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP through a phone number or website you find yourself.
Did MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP offer free credit monitoring?
Look for an enrollment code in your MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Enrolling does not give up your right to bring a claim.
What should I do after getting the MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP 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 MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP 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 MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP. 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 MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP 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 MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP data breach settlement or claim be worth?
There is no set amount, and no MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP 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. Keep receipts and records; they're what damages claims are built on.
Can I sue MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP over the data breach?
It depends on what was exposed, the law in Massachusetts 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.

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