Mainframe Security Best Practices for Cybersecurity Awareness Month

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Mainframes power mission-critical operations across financial services, healthcare, and government—yet they’re not immune to modern cyber threats. Organizations must prioritize encryption, strengthen access controls, and implement real-time monitoring. This Cybersecurity Awareness Month, discover five essential best practices that can protect your most sensitive data and prevent costly breaches.
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7 Critical Mainframe Security Blind Spots That are Costing Banks Money in 2025

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Despite mainframes processing $10.4 trillion in U.S. credit and debit card transactions annually, most banks treat them as security islands invisible to modern monitoring platforms—a gap that contributes to the $4.88 million average breach cost. From unmonitored ESM administrative access to invisible CICS transactions and the inability to correlate mainframe events with network threats, these seven critical blind spots leave financial institutions vulnerable to fraud, insider threats, and multi-million dollar compliance failures.
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Optimizing Mainframe Performance with Automation

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While mainframes process 90% of all credit card transactions and power 68% of the world’s production workloads, many organizations still rely on manual monitoring, reactive performance management, and outdated access protocols that create bottlenecks and security risks. Modern automation tools from SDS transform mainframe operations through intelligent monitoring, predictive analytics, zero-trust security, and intuitive user interfaces, shifting teams from firefighting mode to proactive optimization.
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Mainframe FTP Compliance – Overview

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File Transfer Protocol (FTP) is a commonly used protocol for transferring files between computers on a network. However, using FTP can also create security vulnerabilities that can compromise the confidentiality, integrity, and availability of sensitive information.
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Mainframe Security Compliance – Main Components

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While mainframes are known for their reliability and security, they are not immune to cyber threats. Organizations must implement comprehensive security measures including access controls, encryption, network isolation, and continuous monitoring to maintain compliance with regulatory frameworks like GDPR, HIPAA, and PCI DSS.
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Seven Vulnerabilities of Thick-Client TN3270 Emulators

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Thick-client TN3270 emulators expose mainframe 3270 applications to seven critical security vulnerabilities, including exposed terminal emulation code, reliance on outdated browsers, and unaudited macros. Download our whitepaper to learn how Virtel Web Access’ browser-based thin-client emulator eliminates these risks and protects your organization’s data and network.
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