Hackers linked to ShinyHunters have published data allegedly stolen from Abbott’s cancer diagnostics business, Exact Sciences, after claiming Abbott declined to pay an extortion demand. The incident matters because the leaked material reportedly includes sensitive personal and health information relating to patients, customers and healthcare providers, increasing risks of fraud, phishing and privacy harm.

Have I Been Pwned recorded 10.9 million unique email addresses in the published data, alongside names, contact details, dates of birth, gender and health information. Abbott disclosed the breach on 16 July and said it began with a voice-phishing attack affecting a limited number of internal systems, without disrupting patient services or laboratory operations; ShinyHunters’ further claims of tens of millions of records, including Social Security numbers and clinical notes, have not been independently verified.