John Carreyrou, the acclaimed author and Pulitzer-prize winning journalist whose investigative reporting blew the lid off the Theranos scandal in 2015, explained to third-party risk professionals at Compliance Week’s TPRM Virtual Summit on Friday that the mistakes made by the bankrupt blood-testing company’s business partners were entirely preventable—had they done their proper due diligence.

Aly McDevitt is Data & Research Journalist at Compliance Week. She has a background in education and college consulting. Prior to teaching, she was an editor/author at Thomson Reuters, where she reported...