December ransomware attack leads to massive data breach from California health network

A network of healthcare facilities across California reported a data breach last week after suffering from a ransomware attack in December.

Some of the medical groups within the Heritage Provider Network posted notices on their websites and sent out notification letters on February 1 to more than 3.3 million patients informing them of a data breach that involved names, Social Security numbers, phone numbers and dates of birth, as well as information related to treatment, such as lab test results, …

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