Elizabeth Holmes founded Theranos at 19. She promised to revolutionize blood testing, detecting hundreds of diseases with blood from a simple finger prick. Her board included the former secretaries Henry Kissinger and James Mattis. She raised billions of dollars, and the company was at one point valued at more than $9 billion.
According to NBC News, the technology did not appear to work as claimed. In January 2022 a jury found Holmes guilty on four counts of fraud and conspiracy involving investors. She was sentenced to 11 years and 3 months.