MJMS Family Office Services, Madden, Jiganti Data Breach Explained

MJMS Family Office Services LLC and Madden, Jiganti, Moore & Sheridan LLP recently reported a data security incident to the Massachusetts Attorney General, with a filing date of July 14, 2026. This notification indicates that personal information handled by these entities may have been exposed due to a breach of their network safeguards. The firms have stated that the precise mechanics of the intrusion are still being evaluated.

These organizations operate in specialized legal and financial advisory roles, which means they are entrusted with a significant volume of highly confidential client information. The nature of their services requires them to collect and store extensive personal data, making the security of this information critically important.

If you have received a data breach notification letter from MJMS Family Office Services LLC or Madden, Jiganti, Moore & Sheridan LLP, it serves as formal confirmation that your personal information was involved in this security incident. This letter signals that the digital protections in place for your data were compromised, even as the investigation into the exact cause continues.

As someone affected by this breach, it is prudent to carefully review any specific guidance provided in your notification letter. Generally, monitoring your personal accounts for any unusual or suspicious activity and exercising caution with unsolicited communications are important steps to consider when your personal information has potentially been exposed.

Under Massachusetts laws governing consumer privacy and data security, individuals whose personal information has been compromised in a data breach may have specific legal rights. Even if you have not yet experienced direct financial loss or identity theft, the unauthorized access to your personal data can be a basis for seeking legal redress.

Understanding your options and legal standing after receiving a data breach notification can be complex. Our firm offers a complimentary and confidential case review to help you assess your situation and explore any potential legal avenues. There are no out-of-pocket costs to you, as we handle these cases on a contingency fee basis, meaning we only receive payment if we successfully recover compensation on your behalf.