From Green Screen to Red Alert: Fortifying Your Mainframe Security

Topic : information technology services | saas software platforms

Published on Jan 14, 2026

From Green Screen to Red Alert: Fortifying Your Mainframe Security

Mainframes process 90% of global credit card transactions, making them high-value targets for cybercriminals. A growing danger comes from fake IT workers who exploit weak credentials, insider access, AI-driven scams, and compliance gaps. Insider breaches now average US$4.99 million, and many threats operate unnoticed within organizations through compromised logins, payroll fraud, or social engineering.

  • Red Flags to Watch: Weak or shared credentials, unusual login locations or hours, suspicious payroll activity, AI-enabled phishing, insider misuse, and regulatory compliance gaps.
  • Real-World Threats: Fake payroll websites and large-scale schemes placing fake IT workers inside U.S. companies show how convincing and damaging these attacks can be.
  • Immediate Actions: Use MFA, monitor login behavior, audit activity, and integrate secure green screen access with centralized IAM systems.

To defend against fake IT workers, organizations must secure mainframe access with TLS 1.3 encryption, MFA, real-time monitoring, and detailed auditing. Rocket® Secure Host Access enables phishing-resistant, password-less access while extending modern IAM controls, helping organizations reduce risk, ensure compliance, and protect critical systems before a breach occurs.

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