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An international law firm that works with companies affected by security incidents has experienced its own cyberattack that exposed the sensitive health information of hundreds of thousands of data breach victims. San Francisco-based Orrick, Herrington & Sutcliffe said last week that hackers stole the personal information and sensitive health data of more than 637,000 data breach victims from a file share on its network during an intrusion in March 2023. Orrick also said it notified health insurance company MultiPlan, behavioral health giant Beacon Health Options (now known as Carelon) and the U.S. Small Business Administration that their data was also compromised in Orrick’s data breach. The data also includes medical treatment and diagnosis information, insurance claims information — such as the date and costs of services — and healthcare insurance numbers and provider details. The number of individuals known to be affected by this data breach has risen by threefold since Orrick first disclosed the incident.