El Camino Hospital Data Breach (2012)

For years, cybersecurity startup Tanium Inc. pitched its software by showing it working in the network of a hospital it said was a client, according to people familiar with the matter and videos of the demonstrations. That and other efforts helped the company grow quickly, notching a valuation of $3.5 billion and a big investment from Andreessen Horowitz, one of Silicon Valley’s most prominent venture firms. But Tanium never had permission to present the demos, the hospital said.