Ray Overby is co-founder and Chief Technology Officer at KRI Security, a software and security services firm specializing in mainframe security, where he heads the technical team. Drawing on more than 30 years of experience with IBM z Systems, he is an expert in mainframe security, risk, and compliance. He has consulted with various government and multinational clients on information system security, enterprise security management and design, policy review, penetration testing, technical configuration evaluation, security procedures, and disaster recovery/business continuity planning. For the past decade, he has provided software and consulting services to Fortune 500 institutions focused on z/OS environment code-based vulnerability assessments.