--- title: Virtel Blog - Mainframe modernization and security | Virtel description: "Virtel | In this blog you will find helpful information to fully benefit from your z/OS systems: \nLearn more about 3270 emulation, modernization, and security. \nOptimize your mainframe costs and train your teams to z skills.\nStay informed with the latest news in the industry." --- [![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) [![](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) [![](https://blog.virtelweb.com/hubfs/Unlock3270application3.jpg)](https://blog.virtelweb.com/leverage-mainframe-assets-modernize-and-extend-legacy-3270-applications-without-touching-the-code) ### [Leverage Mainframe Assets:  Modernize and Extend Legacy 3270 Applications – Without Touching the Code](https://blog.virtelweb.com/leverage-mainframe-assets-modernize-and-extend-legacy-3270-applications-without-touching-the-code) by [Sebastian DEWAR](https://blog.virtelweb.com/author/sebastian-dewar) on December 10, 2025 For over half a century, **mainframe computers** have been the **silent engines driving the world’s most critical business...** [Read More](https://blog.virtelweb.com/leverage-mainframe-assets-modernize-and-extend-legacy-3270-applications-without-touching-the-code) [![](https://blog.virtelweb.com/hubfs/Email%20-%20blog%20EN%20-%20SSO%20-%20sept%202026.png)](https://blog.virtelweb.com/modern-authentication-why-sso-mfa-is-the-future-of-secure-access) ### [Modern Authentication: Why SSO + MFA Is the Future of Secure Access](https://blog.virtelweb.com/modern-authentication-why-sso-mfa-is-the-future-of-secure-access) by [Sebastian DEWAR](https://blog.virtelweb.com/author/sebastian-dewar) on September 8, 2025 In today’s enterprise landscape, identity is the new security perimeter. Whether your users are connecting to SaaS... [Read More](https://blog.virtelweb.com/modern-authentication-why-sso-mfa-is-the-future-of-secure-access) [![](https://blog.virtelweb.com/hubfs/rpaBlogVirtel.jpg)](https://blog.virtelweb.com/modernizing-and-automating-mainframe-business-processes) ### [Modernizing and Automating Mainframe Business Processes: Achieve Agility Through Frictionless Automation](https://blog.virtelweb.com/modernizing-and-automating-mainframe-business-processes) by [Sebastian DEWAR](https://blog.virtelweb.com/author/sebastian-dewar) on June 18, 2025 In an era of accelerated digital transformation, businesses must become faster, more efficient, and more resilient. Yet many... [Read More](https://blog.virtelweb.com/modernizing-and-automating-mainframe-business-processes) [![](https://blog.virtelweb.com/hubfs/screenshot03ESMBLOG.jpg)](https://blog.virtelweb.com/the-future-of-3270-emulation-secure-web-based-and-user-friendly) ### [The Future of 3270 Emulation: Secure, Web-Based, and User-Friendly](https://blog.virtelweb.com/the-future-of-3270-emulation-secure-web-based-and-user-friendly) by [Sebastian DEWAR](https://blog.virtelweb.com/author/sebastian-dewar) on April 28, 2025 The world of mainframe applications relies on robust and proven systems, but they face challenges in usability, integration,... [Read More](https://blog.virtelweb.com/the-future-of-3270-emulation-secure-web-based-and-user-friendly) [![](https://blog.virtelweb.com/hubfs/MarshAvantApres.png)](https://blog.virtelweb.com/from-green-screens-to-modern-web-interfaces) ### [From Green Screens to Modern Web Interfaces](https://blog.virtelweb.com/from-green-screens-to-modern-web-interfaces) by [Sebastian DEWAR](https://blog.virtelweb.com/author/sebastian-dewar) on April 3, 2025 Mainframe applications remain at the heart of critical business operations, but their 3270 green screen interfaces often... [Read More](https://blog.virtelweb.com/from-green-screens-to-modern-web-interfaces) [![](https://blog.virtelweb.com/hubfs/blogArticle5Reasons.jpg)](https://blog.virtelweb.com/five-reasons-to-replace-your-tn3270-terminal-emulator-now) ### [5 Reasons to Replace Your TN3270 Terminal Emulator NOW](https://blog.virtelweb.com/five-reasons-to-replace-your-tn3270-terminal-emulator-now) by [Sebastian DEWAR](https://blog.virtelweb.com/author/sebastian-dewar) on March 12, 2025 TN3270 terminal emulators have long been a staple for accessing mainframe applications. However, as technology evolves and... [Read More](https://blog.virtelweb.com/five-reasons-to-replace-your-tn3270-terminal-emulator-now) [![](https://blog.virtelweb.com/hubfs/podcastAnnonce.jpg)](https://blog.virtelweb.com/transforming-mainframe-user-experience) ### [Transforming Mainframe User Experience– Insights from the IBM Z Action Podcast](https://blog.virtelweb.com/transforming-mainframe-user-experience) by [Sebastian DEWAR](https://blog.virtelweb.com/author/sebastian-dewar) on March 5, 2025 Mainframes remain a critical foundation for many enterprises, offering unmatched reliability, security, and performance.... [Read More](https://blog.virtelweb.com/transforming-mainframe-user-experience) ### Subscribe Here! [Contact](https://www.virtelweb.com/contact.html) [Privacy](https://www.virtelweb.com/privacy.html) [About](https://www.virtelweb.com/about/syspertec-group.html) [Legal](https://www.virtelweb.com/legal.html) Copyright © 2026 Virtel. 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