--- title: Virtel Blog - Mainframe modernization and security | Maxime Quartier description: Business & Technology Analyst at Virtel, writing on the convergence of mainframe infrastructure, cybersecurity and operational resilience. He explores how legacy systems shape the strategic and regulatory choices facing modern enterprises, and how organisations turn technical constraint into competitive advantage. --- [![Virtel-logo202](https://blog.virtelweb.com/hs-fs/hubfs/Virtel-logo202.png?width=200&height=62&name=Virtel-logo202.png "Virtel-logo202")](https://blog.virtelweb.com/) - [Articles](https://blog.virtelweb.com/) - [Resources](https://www.virtelweb.com/support-resources/resources.html?utm_source=blog&utm_medium=blog_cta) - [Try Virtel](https://www.virtelweb.com/support-resources/virtel-demos-and-free-trial.html?utm_source=blog&utm_medium=blog_cta) - [Contact Us](https://www.virtelweb.com/contact.html?utm_source=blog&utm_medium=blog_cta) - [Virtel Web Suite](https://www.virtelweb.com?utm_source=blog&utm_medium=blog_cta) # Blog Virtelweb - [Mainframe](https://blog.virtelweb.com/tag/mainframe) - [3270 emulation](https://blog.virtelweb.com/tag/3270-emulation) - [applications mainframe](https://blog.virtelweb.com/tag/applications-mainframe) ## Maxime Quartier ![Maxime Quartier](https://blog.virtelweb.com/hubfs/MaximeQUARTIER.jpg) Business & Technology Analyst at Virtel, writing on the convergence of mainframe infrastructure, cybersecurity and operational resilience. He explores how legacy systems shape the strategic and regulatory choices facing modern enterprises, and how organisations turn technical constraint into competitive advantage. Find me on: ### Recent Posts [![](https://blog.virtelweb.com/hubfs/ChatGPT%20Image%2015%20sept.%202026%2c%2010_17_40.png)](https://blog.virtelweb.com/what-you-actually-run-z-os-asset-inventory-compliance) ### [What You Actually Run: z/OS Asset Inventory & Compliance ?](https://blog.virtelweb.com/what-you-actually-run-z-os-asset-inventory-compliance) by [Maxime Quartier](https://blog.virtelweb.com/author/maxime-quartier), [Sebastian DEWAR](https://blog.virtelweb.com/author/sebastian-dewar) on September 22, 2026 8 min read  [Read More](https://blog.virtelweb.com/what-you-actually-run-z-os-asset-inventory-compliance) [![](https://blog.virtelweb.com/hubfs/imgArticleBlogVirtel072026-1.png)](https://blog.virtelweb.com/the-audit-log-lied-when-ai-agents-borrow-a-humans-identity) ### [The Audit Log Lied: When AI Agents Borrow a Human's Identity](https://blog.virtelweb.com/the-audit-log-lied-when-ai-agents-borrow-a-humans-identity) by [Maxime Quartier](https://blog.virtelweb.com/author/maxime-quartier), [Bruno Maunier](https://blog.virtelweb.com/author/bruno-maunier) on July 6, 2026 8 min read  ## *What happens when an AI agent operates under a human's RACF identity on the mainframe?* On 17 July 2025, an... [Read More](https://blog.virtelweb.com/the-audit-log-lied-when-ai-agents-borrow-a-humans-identity) [![](https://blog.virtelweb.com/hubfs/articleBlog-june2026.png)](https://blog.virtelweb.com/when-obscurity-stops-protecting) ### [When Obscurity Stops Protecting](https://blog.virtelweb.com/when-obscurity-stops-protecting) by [Maxime Quartier](https://blog.virtelweb.com/author/maxime-quartier), [Bruno Maunier](https://blog.virtelweb.com/author/bruno-maunier) on June 3, 2026 8 min read  *AI-driven vulnerability discovery and the mainframe access layer* In early April 2026, Anthropic published a... [Read More](https://blog.virtelweb.com/when-obscurity-stops-protecting) [![](https://blog.virtelweb.com/hubfs/blogVirtel-Formation.jpg)](https://blog.virtelweb.com/knowing-the-components-is-not-the-same-as-understanding-the-system) ### [Knowing the Components Is Not the Same as Understanding the System](https://blog.virtelweb.com/knowing-the-components-is-not-the-same-as-understanding-the-system) by [Christian Barroso Yelmo](https://blog.virtelweb.com/author/christian-barrosso-yelmo-maxime-quartier), [Maxime Quartier](https://blog.virtelweb.com/author/maxime-quartier) on March 25, 2026 8 min read There is a particular kind of incident that tests a mainframe team in a way that normal operations never do. Not... [Read More](https://blog.virtelweb.com/knowing-the-components-is-not-the-same-as-understanding-the-system) [![](https://blog.virtelweb.com/hubfs/Dora-illustration-1-1.png)](https://blog.virtelweb.com/dora-and-mainframe-access-the-security-gap-nobody-is-watching) ### [DORA and Mainframe Access: The Security Gap Nobody Is Watching](https://blog.virtelweb.com/dora-and-mainframe-access-the-security-gap-nobody-is-watching) by [Maxime Quartier](https://blog.virtelweb.com/author/maxime-quartier), [Sebastian DEWAR](https://blog.virtelweb.com/author/sebastian-dewar) on February 25, 2026 **The Digital Operational Resilience Act** became fully enforceable across the European Union on **January 17, 2025**. From that... [Read More](https://blog.virtelweb.com/dora-and-mainframe-access-the-security-gap-nobody-is-watching) ### Subscribe Here! 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