US firm General Dynamics Information Technology (GDIT) is tackling a critical defense cybersecurity challenge: protecting legacy military IT systems without replacing the infrastructure already supporting missions.
The company has developed the Everest Zero Trust portfolio, comprising three solutions designed for different stages of zero trust implementation across defense agencies and operational environments.
The lineup begins with Clarity, which assesses an agency’s existing IT infrastructure and maps out an actionable path toward zero trust.

Flex is a modular platform designed to close security gaps by working alongside existing systems and adapting to each agency’s implementation roadmap.
Unified, meanwhile, provides full-stack security for new IT systems and operational warfighting environments that lack existing zero trust capabilities.
Everest Zero Trust recently completed a government red-team cyber assessment on an upgraded IT system. GDIT described it as the first and only portfolio of solutions to reach the benchmark.
According to the company, the assessment demonstrated the system’s ability to withstand advanced cyberattacks.
Defending Against AI-Fueled Threats
The portfolio arrives as AI increases the speed, scale, and complexity of cyber threats facing US defense networks.
In response, the US Department of War (DoW) is prioritizing zero trust, an approach that verifies every user and device before granting access to sensitive military data, systems, and services.

However, many available solutions require agencies to replace their existing IT infrastructure, despite years of investment in zero trust modernization.
Everest is designed to overcome that constraint by providing a faster and more cost-effective route to securing both legacy networks and operational warfighting systems.
“As cyberattacks become increasingly sophisticated, fueled by AI, our customers need proven zero trust solutions tailored to their mission environments,” said Brian Sheridan, senior vice president of defense at GDIT.
“Our flexible, scalable, and cost-effective zero trust solutions will enable agencies to achieve DoW’s mission to rapidly implement zero trust, combat advanced cyber threats, and ultimately protect our national defense operations.”