The breach adds to a growing number of cyberattacks on the healthcare sector, including medical device makers Abbott, Stryker Medtronic and Boston Scientific, drugmaker Novo Nordisk and drug-delivery equipment supplier West Pharmaceutical Services.

The company, which distributes medicines and medical devices to hospitals and healthcare practices across the U.S., said it was hacked and expects intermittent service degradation.

McKesson admits breach as ShinyHunters demands $55.2M