IBM announced three new Z software tools on June 19, 2026, in Armonk, NY, to fortify its mainframe platform against AI-driven cyberattacks. The tools focus on threat detection, automated security management, and AI-powered database optimization, addressing concerns about “frontier model attacks” where advanced AI models autonomously discover vulnerabilities and orchestrate complex attacks. IBM’s Z platform has an average yearly downtime of less than a third of a second, and over 95% of all non-cash transactions run on mainframes. The first tool, IBM zSecure Detection, actively monitors the mainframe for signs of ransomware and other suspicious behaviors.