Understanding your Musarubra US LLC dba Trellix data breach notification letter
If a Musarubra US LLC dba Trellix letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.
Why you received this letter
Musarubra US LLC, operating as Trellix, reported a data breach to regulators in Indiana on August 28, 2026, following an incident that occurred in February 2026. The filing indicates personal information may have been compromised, and affected individuals should remain vigilant.
Information the filing reports 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
What to do after the letter
Confirm the notice is genuine
A legitimate Musarubra US LLC dba Trellix notice references the specific incident reported to the Indiana Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.
Keep the letter — it is your proof of connection
The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.
Protect your accounts and credit
Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.
Check the record against the public filing
You can verify the Musarubra US LLC dba Trellix incident against the filing reported to the Indiana Attorney General. This registry summarizes what was filed; it does not provide legal advice.
This page summarizes a data breach reported to the Indiana Attorney General for informational purposes. DataBreachCaseFile.com is a neutral reference registry and does not provide legal advice.