Corporations around the world are suffering from the relentless rise of cyber-crime, cyber-espionage and cyber-terrorism. In addition to severely harming a company’s reputation, breaches into their secure systems threaten customers’ privacy, safety, and wellbeing. As a result, companies are taking greater measures to secure their information throughout their supply chains. One large air-frame manufacturer has been a leader in the push for greater security. This manufacturer has conceived and implemented a multi-faceted secure software development program, strengthening cyber-security for all the software it uses. This paper will examine this manufacturer’s security process and discuss how vendors rose to meet these rigorous security requirements.