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MonitoringCalifornia AG filing · May 26, 2026

ERMI LLC Data Breach Exposes Patient Information in California

ERMI LLC, a California-based medical device provider, reported a data security incident on May 26, 2026, compromising sensitive patient information. The breach involved various personal and health data types, underscoring the risks associated with centralized healthcare records.

State
California
Breach date
February 15, 2025
Reported
May 26, 2026

What may have been exposed

  • Full Name
  • Date of Birth
  • Social Security Number
  • Medical Record Number
  • Health Insurance ID Number
  • Diagnosis and Treatment Information
  • Prescription Information
  • Provider and Treatment Dates
  • Home Address
  • Phone Number

ERMI LLC, an entity specializing in rehabilitative medical devices, officially reported a data breach to regulatory bodies in California on May 26, 2026. The company, which maintains extensive records for patients receiving therapeutic equipment, indicated that its network infrastructure was compromised, leading to unauthorized access to confidential information.

The breach, which occurred on or about February 15, 2025, involved an unspecified type of security incident. Public filings confirm that ERMI LLC is currently monitoring the situation following the compromise of its systems. Organizations like ERMI LLC are often targets for cyberattacks due to the volume and sensitivity of the data they manage.

The exposed data categories include Full Name, Date of Birth, Social Security Number, Medical Record Number, Health Insurance ID Number, Diagnosis and Treatment Information, Prescription Information, Provider and Treatment Dates, Home Address, and Phone Number. The combination of these data types presents significant risks, potentially enabling identity theft or medical fraud.

Individuals who receive a breach notification from ERMI LLC should carefully review the information provided. It is generally recommended to remain vigilant by monitoring financial accounts and credit reports for any suspicious activity. Placing a fraud alert or security freeze on credit files can also provide an additional layer of protection. Consider enabling multi-factor authentication on online accounts whenever possible.

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.

  • Check for medical identity theft

    Review the Explanation of Benefits statements from your health insurer for services or claims you never received, which can signal misuse of your medical identity.

  • 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: California Attorney General filing

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