International Working Group on Assurance Cases (for Security)

Critical systems are aptly named--from electric power to water and gas to the telephone system and theInternet, they're all critical to some aspect of our daily lives. We're a networked society and assuch, it's important to both know whether critical systems are trustworthy and be able to communicate,review, and debate the level of trust achieved in them. In the safety domain, explicit safety cases areincreasingly required by law, regulations, and standards. In this article, we outline what a small,international group of experts, spanning various disciplines in safety, security, reliability, andcritical infrastructure, been doing with the International Working Group on Assurance Cases (forSecurity), what we hope to achieve, and where we go next.