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MonitoringMontana AG filing · December 22, 2025

Sax, LLP Data Breach: Understanding Your Notification in Montana

Sax, LLP recently reported a cybersecurity incident that exposed clients' personal and financial information. If you received a data breach notification letter, it means your sensitive data, including your Social Security Number and tax details, may have been compromised. Understanding the details of this breach is crucial for protecting yourself against potential identity theft and financial fraud.

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This breach is real, not a scam. Sax, LLP officially reported it to the Montana Attorney General on December 22, 2025.

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

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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

On December 22, 2025, the professional services firm Sax, LLP disclosed a cybersecurity incident to the Montana Attorney General's office, informing clients that unauthorized parties had accessed their network. The incident, which took place on or around August 7, 2024, involves the highly sensitive personal and financial data entrusted to Sax, LLP for accounting, tax, and financial consulting services.

According to the breach notification letters, the compromised information 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 extensive list of exposed data places affected individuals at increased risk for identity theft, financial fraud, and other privacy harms.

Receiving a notification letter from Sax, LLP confirms that your specific information was part of this security lapse. Companies like Sax, LLP, handling such confidential records, have a legal responsibility to implement robust security measures to protect client data. A breach involving this type of information suggests that these protective measures may have been insufficient.

If you received a notification, it is crucial to carefully review the letter for any specific advice provided by Sax, LLP. We recommend taking proactive steps such as placing a fraud alert on your credit reports and closely monitoring all financial statements and tax records for any unauthorized activity. Be vigilant against potential phishing attempts or suspicious communications that may arise from this exposure.

The exposure of sensitive data like Social Security Numbers and financial details can lead to long-term risks, even if immediate fraud is not apparent. The increased potential for identity theft alone can constitute a legal injury. If you were affected by the Sax, LLP data breach, you have rights, and understanding them is an important next step. We offer a free case review to help you explore your options without any obligation.

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.

Sax, LLP data breach notice and letter questions

Is the Sax, LLP data breach letter legit or a scam?
A notice from Sax, LLP in the mail matches the breach Sax, LLP reported to the Montana Attorney General on December 22, 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 Sax, LLP through a phone number or website you find yourself.
Where can I see the official Sax, LLP breach notice?
Sax, LLP's report is published by the Montana Attorney General: https://dojmt.gov/office-of-consumer-protection/reported-data-breaches/#mt-sax-llp-2025 Compare it with the letter you received to confirm the dates and details match.
How many people were affected by the Sax, LLP 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, Tax Return Information, Financial Account Number, Routing Number, Wage and Compensation Information, Home Address. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Did Sax, LLP offer free credit monitoring?
Look for an enrollment code in your Sax, LLP notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Signing up doesn't waive any legal rights you may have.
What should I do after getting the Sax, 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 Sax, 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 Sax, 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 Sax, 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 Sax, LLP data breach settlement or claim be worth?
There is no set amount, and no Sax, 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. 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 Sax, LLP over the data breach?
It depends on what was exposed, the law in Montana 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.

Source: Montana Attorney General filing

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