---
name: zero-trust-architecture-a984b763ff53
description: >
  Implement Zero Trust security model with identity verification,
  microsegmentation, least privilege access, and continuous monitoring. Use when
  building secure cloud-native applications.
---

# Zero Trust Architecture

## Table of Contents

- [Overview](#overview)
- [When to Use](#when-to-use)
- [Quick Start](#quick-start)
- [Reference Guides](#reference-guides)
- [Best Practices](#best-practices)

## Overview

Implement comprehensive Zero Trust security architecture based on "never trust, always verify" principle with identity-centric security, microsegmentation, and continuous verification.

## When to Use

- Cloud-native applications
- Microservices architecture
- Remote workforce security
- API security
- Multi-cloud deployments
- Legacy modernization
- Compliance requirements

## Quick Start

Minimal working example:

```javascript
// zero-trust-gateway.js
const jwt = require("jsonwebtoken");
const axios = require("axios");

class ZeroTrustGateway {
  constructor() {
    this.identityProvider = process.env.IDENTITY_PROVIDER_URL;
    this.deviceRegistry = new Map();
    this.sessionContext = new Map();
  }

  /**
   * Verify identity - Who are you?
   */
  async verifyIdentity(token) {
    try {
      // Verify JWT token
      const decoded = jwt.verify(token, process.env.JWT_PUBLIC_KEY, {
        algorithms: ["RS256"],
      });

      // Check token hasn't been revoked
      const revoked = await this.checkTokenRevocation(decoded.jti);
      if (revoked) {
        throw new Error("Token has been revoked");
// ... (see reference guides for full implementation)
```

## Reference Guides

Detailed implementations in the `references/` directory:

| Guide | Contents |
|---|---|
| [Zero Trust Gateway](references/zero-trust-gateway.md) | Zero Trust Gateway |
| [Service Mesh - Microsegmentation](references/service-mesh-microsegmentation.md) | Service Mesh - Microsegmentation |
| [Python Zero Trust Policy Engine](references/python-zero-trust-policy-engine.md) | Python Zero Trust Policy Engine |

## Best Practices

### ✅ DO

- Verify every request
- Implement MFA everywhere
- Use microsegmentation
- Monitor continuously
- Encrypt all communications
- Implement least privilege
- Log all access
- Regular audits

### ❌ DON'T

- Trust network location
- Use implicit trust
- Skip device verification
- Allow lateral movement
- Use static credentials


---
Source attribution: aj-geddes
Original project: https://github.com/aj-geddes/useful-ai-prompts/blob/3f5182cfd739fc113f4af5244a1cf342ad7f7911/skills/zero-trust-architecture/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Dave AI.

## Upstream license notice

MIT License

Copyright (c) 2025 AJ Geddes

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


# Dave AI resource metadata

Creator / publisher: aj-geddes
Original project: https://github.com/aj-geddes/useful-ai-prompts/blob/3f5182cfd739fc113f4af5244a1cf342ad7f7911/skills/zero-trust-architecture/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering, Product Management
Roles: Backend Developer, DevOps / SRE, Product Manager, Security Engineer
Specialties: API, Backend
Tools: Axios, Jsonwebtoken
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: d594858dc2221e8bd9a8e01c67d80e6a915ac6bee918cbcf1e87c904b3e304f9