William MacMillan

Chief Product Officer LinkedIn

William MacMillan is the Chief Product Officer at Andesite. Prior to this position, he was Senior Vice President for Information Security at Salesforce.

Prior to his retirement from the federal government, William served as the Chief Information Security Officer (CISO) at the Central Intelligence Agency (CIA), where he led a sweeping transformation of the CIA’s cybersecurity strategy and organization.

Prior to serving as CISO, William held multiple senior leadership positions at CIA dealing with various aspects of intelligence, counterintelligence, and cyber operations. During his career, he focused significant attention on insider threat, supply chain risk, and incident response issues, as well as the development of CIA’s Cybersecurity Operations Center (CSOC).

William also held several key leadership positions in CIA’s Center for Cyber Intelligence (CCI), which is responsible for intelligence collection, analysis, and operations focused on foreign cyber threats to US interests.

Earlier in his career, he served in multiple overseas tours as an Operations Officer, employing specialized training and foreign language skills to conduct intelligence operations in support of US national security. He held several key leadership positions during this time, including Chief of Base in a war zone.

Prior to joining CIA, William served as an officer and a pilot in the United States Air Force’s Combat Rescue and Special Operations communities, where he developed and employed cultural expertise focused on the Middle East and Central Asia

William graduated from the United States Air Force Academy with a BS in Biology. He also holds an MA in International Relations from Salve Regina University and an MS in cybersecurity from George Mason University.

William, his wife, and their three children reside in the Pacific Northwest.