Zero Trust Architecture for Federal Agencies

A practical implementation guide for meeting Executive Order 14028. This paper breaks down the pillars of Zero Trust—Identity, Devices, Networks, Applications, and Data—and provides a roadmap for agencies moving beyond perimeter-based security.

Beyond the Perimeter

The castle-and-moat security model is dead. In a world of remote work and cloud services, the perimeter is everywhere. Zero Trust is not a product; it's a mindset: Never Trust, Always Verify.

The 5 Pillars of Zero Trust (CISA Model)

1. **Identity**: Users are who they say they are. (MFA is mandatory, not optional).

2. Devices: The endpoint trying to connect is healthy and compliant.

3. Networks: Micro-segmentation prevents lateral movement. If an attacker gets in, they can't go far.

4. Applications & Workloads: Security is baked into the code (DevSecOps), not bolted on.

5. Data: Encryption at rest and in transit.

Implementation Challenges

**Legacy Systems**: Mainframes and old servers that don't support modern auth protocols.

**User Friction**: Balancing security with usability. If it's too hard to log in, people find workarounds.

**Budget Cycles**: Security needs agility; funding cycles are rigid.

The Path Forward

Start with Identity. Just ensuring that every user has strong, phishing-resistant MFA is the single most effective step an agency can take.

Zero Trust Architecture for Federal Agencies

Beyond the Perimeter

The 5 Pillars of Zero Trust (CISA Model)

Implementation Challenges

The Path Forward

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