Mainframe under siege: Big Iron needs big-time cyber resilience
By Mark Wilson, Technical Director, Vertali
Mainframes have always carried a certain reputation. Big iron. Rock solid. Secure by design. The systems quietly humming away in the corner while the rest of IT panicked about the latest breach or ransomware headline.
Employee Spotlight – Krisztian Csomai
No two days are ever the same for Krisztian in his role at Vertali. Each day brings a new set of challenges and opportunities. Mornings typically begin with checking emails…
Why mainframes still matter in an AI-driven world
Elitsa Popova is a Technical Consultant with Vertali, specializing in z/OS Db2 DBA, co-chair of GS-UK’s WAVEZ 101 and named an IBM Champion in 2025 and 2026.
The Good, the Bad and the Ugly: generative AI and cyber security
Mark Wilson uses the film ‘The Good, the Bad and the Ugly’ to describe how generative AI is threatening mainframe security.
Employee Spotlight: Marcus Chalklin
What Marcus enjoys most about working at Vertali is the friendly and sociable culture, whether that’s grabbing lunch together in the office or catching up at staff conferences, there’s a real sense of community.
Employee Spotlight: Sarah Daems
In this latest Employee Spotlight, we’re featuring Sales Support Administrator, Sarah Daems, who has an interesting background in radio!
Why mainframe pentesting matters more than ever
By Mark Wilson
Penetration testing – simulating the actions of a malicious attacker to uncover vulnerabilities before they are exploited – has become a vital tool in the mainframe security arsenal.
Employee Spotlight: Daniel Redican
In this latest Employee Spotlight, we’re featuring Daniel Redican, Principal Service Delivery Manager who focuses on client services, ensuring that both the team and our customers are looked after.
Our Ethos: Protect
Helen Turner, Operations & PMO Director of Vertali, explains how the company’s ethos has been formalised – and why having a strong ethos is important to clients, colleagues and partners.
How to Survive a ‘Missile Attack’ and the Other Latest Cyberthreats
Robi Singh has written an article for TechChannel highlighting a growing risk: ‘missile attacks’ – cyberattacks designed to destroy or overwrite data so fast that traditional backup and recovery approaches simply can’t keep up.
Employee Spotlight: Andy Penlington
In this Employee Spotlight, we’re shining a light on Andy Penlington, Partner Channel Development Manager, who helps bridge strategy, technology, and partnerships at Vertali.
Explaining mainframe security to your CISO
By Mark Wilson, Technical Director
To gain CISO attention, mainframe security must be framed in terms of business risk and alignment with enterprise security priorities.
IBM and support for the zPDT standalone offering
Mark Wilson says IBM’s zPDT decision risks mid-tier ISVs and mainframe innovation.












