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McKesson Discloses Cyberattack Linked to 284 Million Records

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McKesson supplies about one-third of the prescription medicines used by hospitals, pharmacies, and clinics across North America and also supports specialty care and related programs. In an SEC filing, the company disclosed a discovered cybersecurity incident affecting its information systems. The breach risk is heightened because healthcare records and treatment histories are highly sensitive and harder to replace, enabling fraud, extortion, and targeted social engineering.

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