William M. MacMillan is Senior Vice President (SVP) for Security Product and Program Management (SPPM) at Salesforce. Prior to joining Salesforce, he was the Chief Information Security Officer (CISO) at the Central Intelligence Agency (CIA), where he played a key role in reshaping the CIA’s cybersecurity strategy. William MacMillan, Former CISO for the Central Intelligence Agency, An experienced executive leader and trusted voice on cyber, digital transformation, and national security. Passionate about leveraging military, special operations, and intelligence expertise to strengthen collective resilience and raise the water line for cyber defenders.