America’s cyber adversaries move with speed and stealth. To keep pace, all types of organizations, including those beyond traditional critical infrastructure sectors, need to be able to share and respond to cyber risk in as close to real-time as possible. Organizations engaged in information sharing related to cybersecurity risks and incidents play an invaluable role in the collective cybersecurity of the United States. However, many companies have found it challenging to develop effective information sharing organizations—or Information Sharing and Analysis Organizations (ISAOs). In response, President Obama issued the 2015 Executive Order 13691 directing the Department of Homeland Security (DHS) to encourage the development of ISAOs.