The mainframe hasn’t changed. The economics of attacking it have. Encryption, authentication, and access controls deserve another look. In early April 2026, Anthropic published a research preview of Claude Mythos, a general-purpose model whose security capabilities...
Cybercriminals collaborate. Shouldn't mainframe security professionals do the same? At SHARE 2026, I had the opportunity to sit down with Linda McGrath, Sales Director at Vertali, and Andrew Penlington, Channel Partner Development Manager, to discuss Mainframe Shield,...
The mainframe is not going away. The Arcati Mainframe Navigator 2026 reinforces the continued importance of IBM Z to business-critical operations, while also showing an industry taking a pragmatic approach to AI. Rather than expecting AI to fundamentally disrupt the...
When Anthropic's Mythos model and Project Glasswing demonstrated that AI could identify software vulnerabilities at machine speed, the security community took notice. But the most important insight from Mythos wasn't about discovery speed. It was about everything that...
Hollywood has long depicted fantastical tech, from Star Trek’s ship computers to Iron Man’s JARVIS. Today, AI feels like one of those cinematic futures brought to life. But unlike the movies, it isn't a finished product. It’s a fast-moving reality bringing massive...
Executing a known task on a mainframe is a solved problem. Diagnosing an incident that spans five environments is not. And no amount of hiring solves it, because the challenge isn't a shortage of hands.Why faster diagnostics may be more important than faster task...
![This Critical System [Just Runs] – But Do You Trust It?](https://planetmainframe.com/wp-content/uploads/2026/06/This-Critical-System-Just-Runs-1080x454.jpg)
Every enterprise has a system that delivers reports and information, working seamlessly in the background, unseen, taken for granted, and assigned no true owner. It isn’t the application that processes transactions. It isn’t the database that stores records. It’s the...
The future of enterprise security will not be defined by a single breakthrough. It will be shaped by how well organizations strengthen the fundamentals while adapting to two major shifts happening at once: the explosion of non-human identities (NHIs) and the growing...
In a new three-part webinar series, PopUp Mainframe explores how SysProgs, training leaders, developers, and QA professionals tackle the challenges of modern z/OS environments.Mainframe teams rarely experience the platform in the same way. A systems programmer focused...
A look at how some z/OS shops have closed their batch windows by pushing batch I/O through the owning CICS region.Most CICS shops I have worked in carry the same operational habit: keep a nightly window open so that batch can update VSAM files without colliding with...
