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Musarubra US LLC dba Trellix data breach

Musarubra US LLC, operating as Trellix, reported a data security incident to Indiana authorities in August 2026. This breach, discovered on February 28, 2026, exposed personal information such as full names, email addresses, and credential hashes. Individuals who received notification should understand the risks and take protective measures.

Incident readout

Company
Musarubra US LLC dba Trellix
Reported to
Indiana Attorney General
Filed
August 28, 2026
People affected
Not stated in the filing
Incident type in filing
Not stated
Our review
Monitoring
Read the official filing

Was this a ransomware attack?

The filing does not say ransomware was involved. We do not label an incident ransomware unless the company’s report says so. Whatever the cause, the steps to protect yourself and the legal question are the same.

Information listed in the filing

  • Full Name
  • Email Address
  • Password or Credential Hash
  • Mailing Address
  • Phone Number
  • Employment and Professional Title
  • Corporate Account History
  • Internal System Access Logs

What we know

Musarubra US LLC, known for its cybersecurity solutions under the brand Trellix, recently confirmed a data security incident. This event was reported to Indiana state authorities on August 28, 2026, following its discovery on February 28, 2026.

According to official reports, the information exposed in this breach includes your Full Name, Email Address, Password or Credential Hash, Mailing Address, Phone Number, Employment and Professional Title, Corporate Account History, and Internal System Access Logs.

Such exposure means you face an increased risk of targeted phishing attempts, identity theft, and unauthorized access to your online accounts. Attackers often use stolen data to gain entry to other services where you might reuse passwords or to impersonate you for fraudulent purposes.

If you received a notification about this incident, it is crucial to remain vigilant. We recommend monitoring your financial statements and credit reports for any suspicious activity. You should also be cautious of unsolicited communications, especially those asking for personal details, and consider changing passwords for any accounts that might be linked to the compromised information.

Companies like Musarubra US LLC have a responsibility to protect the personal data they hold. When a security incident occurs, it suggests that these safeguards may have been insufficient, potentially leaving your information vulnerable. Understanding your rights in such a situation is an important step.

If you have received a data breach notification letter from Musarubra US LLC dba Trellix, it indicates your information was involved in this incident. Our firm is currently investigating the circumstances of this breach and offers a free, no-obligation case review to help you understand your options.

See every breach reported in Indiana or read what to do after a ransomware attack.

After the Musarubra US LLC dba Trellix incident: what to do and your options

What should I do after getting the Musarubra US LLC dba Trellix 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.
How many people were affected by the Musarubra US LLC dba Trellix 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, Email Address, Password or Credential Hash, Mailing Address, Phone Number, Employment and Professional Title, Corporate Account History, Internal System Access Logs. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Did Musarubra US LLC dba Trellix offer free credit monitoring?
Any free monitoring Musarubra US LLC dba Trellix is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Because financial or account details are listed in this filing, watch your bank and card statements closely as well. Using the free service won't stop you from joining a lawsuit or settlement later.
Where can I see the official Musarubra US LLC dba Trellix breach notice?
Musarubra US LLC dba Trellix's report is published by the Indiana Attorney General: https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/security-breaches/#musarubra-us-llc-dba-trellix-2026 Compare it with the letter you received to confirm the dates and details match.
Can I sue Musarubra US LLC dba Trellix over the data breach?
It depends on what was exposed, the law in Indiana 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.
Do I need a Musarubra US LLC dba Trellix data breach lawyer or attorney?
Whether the company's systems were encrypted by ransomware or data was simply taken, the legal question is the same: did it protect your information the way the law requires? An attorney can review your notice for free, and these cases are usually handled on contingency.
Is there a Musarubra US LLC dba Trellix 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 Musarubra US LLC dba Trellix. 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.
Is the Musarubra US LLC dba Trellix data breach letter legit or a scam?
A notice from Musarubra US LLC dba Trellix in the mail matches the breach Musarubra US LLC dba Trellix reported to the Indiana Attorney General on August 28, 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 Musarubra US LLC dba Trellix through a phone number or website you find yourself.
How much could a Musarubra US LLC dba Trellix data breach settlement or claim be worth?
There is no set amount, and no Musarubra US LLC dba Trellix 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, Email Address, Password or Credential Hash as involved. Keep receipts and records; they're what damages claims are built on.

Other breaches reported in Indiana

Attorney advertising. This page reflects a public regulator filing; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.