A newly published Weapon Systems Cybersecurity identified the U.S. Air Force as the only service that has issued service-wide guidance detailing how acquisition programs should define cybersecurity requirements and incorporate those requirements in contracts. The report, which was a follow-up to a 2018 report on weapon system cybersecurity, called out the U.S. Air Force’s Cyber Resiliency Office for Weapon Systems, or CROWS. It specifically cited the office for developing the System Security Engineering Cyber Guidebook to “consolidate references to different DoD and Air Force instructions and guidance into a single document and provide more detailed explanations and suggestions for implementation.”