New sensitive breach: McKesson was targeted in a ShinyHunters extortion campaign last month. Allegedly sourced data was later published with 6.4M emails from marketing campaigns, patients, staff and others. 66% were already in @haveibeenpwned. More: https://haveibeenpwned.com/Breach/McKesson
Have I Been PwnedHave I Been Pwned: McKesson Data BreachIn August 2026, healthcare and pharmaceutical company McKesson was targeted in a ShinyHunters "pay or leak" extortion campaign. The group subsequently published a substantial corpus of data they alleged was sourced from the company, which included 6.4M unique email addresses among other personal and corporate data attributes. The impacted data related to a range of individuals and roles, including