White Paper: Buy vs Build: Deploying a Cyber Survivable Operating Environment

October 21, 2026

12 min read (2,900 words)

This white paper explains why mission‑critical edge systems need a cyber‑survivable operating environment capable of maintaining mission functions even when adversaries gain access, and how Mercury’s RelianceOne Operating Environment meets that need with built‑in protections such as secure boot, OS hardening, mission‑aware containment, and runtime policy enforcement. It outlines the shortcomings of traditional enterprise‑oriented cybersecurity approaches in contested environments and demonstrates how RelianceOne delivers measurable, evidence‑based survivability rather than relying solely on detection or compliance.

Readers will learn about the evolving threat landscape facing combat systems, the architecture and security capabilities of the RelianceOne OE, the importance of survivability over traditional compliance frameworks, the role of enhanced CVE analysis and configuration control in sustaining trusted baselines, and the advantages of a buy‑versus‑build approach that reduces engineering burden while improving long‑term resilience.

Read this whitepaper to learn about:
  • How mission‑critical edge systems face increasingly sophisticated cyber threats
  • The core capabilities of Mercury’s RelianceOne OE
  • Why survivability is essential, and how RelianceOne provides resilience under attack.
  • The benefits of a buy‑vs‑build approach that reduces engineering effort and accelerates deployment of cyber‑survivable operating environments.

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