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Investigation OpenMassachusetts AG filing · July 14, 2026

Massachusetts Legal and Financial Firms Report Data Breach

MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP in Massachusetts have reported a data security incident. This breach means your personal information they held may have been exposed, potentially opening you to significant risks. You may be eligible to pursue compensation for this compromise.

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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, two Massachusetts-based firms operating in boutique legal counsel and wealth management, recently reported a data security incident. On July 14, 2026, these organizations acknowledged that their network infrastructure had been compromised, potentially exposing the personal information they stored. This incident affects individuals whose data was entrusted to these specialized legal and financial practices.

Given the nature of their work with ultra-high-net-worth individuals and family offices, these firms centralize an extraordinary volume of sensitive personal and financial dossiers. When such an entity experiences a data breach, the information involved is often highly confidential and valuable to cybercriminals. The unauthorized access to this kind of data creates a particularly high risk for those affected.

The exposure of your personal information through this breach could lead to various forms of identity theft, financial fraud, or other malicious activities. Bad actors might attempt to misuse the compromised data for sophisticated schemes. Remaining vigilant about your accounts and personal records is crucial following such an event.

Under state and federal data protection standards, organizations like MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP have a legal obligation to protect the sensitive information they handle. A data breach notification letter serves as a formal acknowledgment that their security measures may have failed. This notice establishes your standing to consider a legal claim to seek accountability for the breach.

If you received a data breach notification letter from MJMS Family Office Services LLC or Madden, Jiganti, Moore & Sheridan LLP, it confirms that your data was involved. Understanding your rights and potential recourse is an important next step. You don't need to have suffered immediate financial loss or identity theft to explore your options for compensation.

DataBreachPayment.com offers a free case review to help you understand what a claim related to this data breach could mean for you. Our experienced team can assess your situation without any upfront cost, and we only get paid if we successfully recover compensation on your behalf. This is a no-obligation opportunity to learn more about pursuing justice after a data security failure.

Received the MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP notification letter? The MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP case file tracks this filing.

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 settlement, compensation and claim questions

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.
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.
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.
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.
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.
Do I need a MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP data breach lawyer or attorney?
A data breach lawyer can tell you whether your situation supports a claim and what it may be worth. A review here is free, and law firms usually take these cases on contingency, so there is no upfront cost.
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.

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