Bad Blood by John Carreyrou – A Riveting Exposé of Ambition Gone Wrong

This book made me angry. In the best way.

Carreyrou tells the story of Theranos — a company that promised to revolutionize blood testing and instead became one of the biggest frauds in Silicon Valley history. Elizabeth Holmes raised billions on technology that didn't work. People's health was at risk. Engineers who spoke up were silenced or fired.

What hit me as an engineer: the technical people knew. They knew the devices didn't work. They raised alarms internally. And they were crushed by a culture of intimidation and secrecy. That's terrifying. I've worked in environments where raising concerns was discouraged, and while the stakes were never this high, the pattern is familiar.

The book reads like a thriller. Carreyrou's investigative journalism is meticulous. He builds the case methodically — interview by interview, document by document. You watch the lies compound. Small ethical compromises become catastrophic ones. A demo faked here. A result hidden there. Each one makes the next easier.

What I took away: "fake it till you make it" has limits. In tech, there's a fine line between ambitious vision and outright deception. Holmes crossed it and kept going. The board — full of powerful, credentialed people — either didn't see it or didn't want to. That's a governance failure as much as a leadership one.

My criticism of the book itself is minor: Carreyrou occasionally repeats details across chapters, and some of the middle section drags. But these are small complaints for a book this important.

Read this if you work in tech. Read it if you're in leadership. Read it if you've ever wondered how fraud can happen in broad daylight with so many smart people watching. The answer is uncomfortable: it happens because we let it.