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MonitoringMontana AG filing · December 22, 2025

Sax, LLP Reports 2024 Network Breach, Client Data Exposed

Sax, LLP, a professional services firm, reported a data breach in December 2025 involving unauthorized access to their network environment in August 2024. This incident exposed sensitive personal and financial client data, requiring affected individuals to monitor their accounts for potential misuse.

State
Montana
Breach date
August 7, 2024
Reported
December 22, 2025

What may have been exposed

  • Full Name
  • Social Security Number
  • Date of Birth
  • Tax Return Information
  • Financial Account Number
  • Routing Number
  • Wage and Compensation Information
  • Home Address

Sax, LLP, a professional services firm specializing in accounting and financial services, detected unauthorized access to its network environment on August 7, 2024. The firm subsequently filed a report on December 22, 2025, notifying regulators and affected individuals in Montana about the security incident. The investigation into the full scope of the breach and its impacts is currently under monitoring.

The breach exposed a range of highly sensitive personal and financial information belonging to clients. Data potentially accessed by unauthorized actors includes Full Name, Social Security Number, Date of Birth, Tax Return Information, Financial Account Number, Routing Number, Wage and Compensation Information, and Home Address. This combination of data types can present significant risks for affected individuals.

Given the nature of the exposed information, individuals who received a notification are advised to take proactive measures to protect their personal and financial security. This includes placing a fraud alert or security freeze on credit reports with the major credit bureaus, which can help prevent the opening of new fraudulent accounts.

It is also recommended that affected individuals carefully review all financial statements and account activity for any suspicious or unauthorized transactions. Staying vigilant for unsolicited communications, such as emails or calls attempting to acquire further personal details, is another important step to help mitigate potential harm following a data incident of this type.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Guard against tax fraud

    File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.

  • Watch your financial accounts

    Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.

  • 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.

Source: Montana Attorney General filing

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