GUIDEHOUSE INC.

Guidehouse reported a data breach to the Montana Attorney General. The breach was reported on 2021-07-29. The breach occurred on 3/23/2021. 1 Montana residents were affected.

Guidehouse, on behalf of Community Memorial Health System (Ventura, CA), disclosed a breach of a third-party secure file transfer service in January 2021. The incident compromised patient data including names, dates of birth, member IDs, addresses, and medical information. Guidehouse notified the health system on May 21, 2021, and offered two years of credit monitoring via Experian.

Guidehouse, a business associate, reported a cyber-attack on its secure file transfer device that affected 91,331 individuals. The breach, reported to HHS on 2021-07-15, compromised protected health information including names, dates of birth, diagnoses, conditions, and claims information. In response, Guidehouse applied a critical patch to mitigate the vulnerability, discontinued the compromised device, and transitioned to a different network.

Guidehouse reported a data breach to the Montana Attorney General. The breach was reported on 2021-06-25. The breach occurred on 1/20/2021. 2 Montana residents were affected.