ShinyHunters extortion campaign leaks McKesson data; 6.4M email addresses added to Have I Been Pwned
In August 2026, healthcare and pharmaceutical company McKesson was targeted in a ShinyHunters "pay or leak" extortion campaign. The group published a substantial corpus of data allegedly taken from the company, including 6.4M unique email addresses alongside other personal and corporate attributes. The data relates to marketing campaign r…