The traditional "castle and moat" security model has been rendered obsolete by cloud adoption, remote work, and increasingly sophisticated insider threats.
What Zero Trust Means in Practice
Zero Trust is built on three pillars:
- Verify explicitly — Authenticate and authorize every user, device, and application on every request
- Use least privilege access — Grant only the minimum permissions required for each task
- Assume breach — Design systems as if attackers are already inside the network
