CEO Bill Gates was so concerned that he wrote a famous internal memo to every employee, stating that if a developer has to choose between implementing a feature or improving security, they must choose security, because nothing less than the survival of the company was at stake. And thus began the famous security stand-down that affected every product at Microsoft. Interestingly, Satya Nadella, CEO of Microsoft, still has a culture that if a developer ever has a choice between working on a feature or developer productivity, they should always choose developer productivity.