Form 8-K MCKESSON CORP For: Aug 25

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McKesson reports cybersecurity incident affecting its information systems

August 28, 2026 4:07 PM EDT

McKesson Corporation (NYSE: MCK) disclosed a cybersecurity incident affecting its information systems, discovered on August 25, 2026.

The company said an investigation is in its early stages. As of the date of the filing, McKesson has not determined that the incident is... More