Medical data of half a million blood donors leaked online

Sensitive medical information on 550,000 blood donors has been leaked online, including whether they have recently engaged in at-risk sexual activity or injected recreational drugs.

After what has been dubbed one of the worst personal data breaches in Australian history, the Australian Red Cross Blood Service admitted on Friday that one of its IT partners had left a backup dataset containing personal and medical information of thousands of its donors on an unsecured website.

The dataset includes donors’ responses to a Red Cross eligibility questionnaire, which asks whether donors have ever