What Is Zero Trust? A Practical Introduction for Security Teams
1 min read
Zero trust is a security model built on one principle: never trust, always verify. No user, device, or service is trusted by default, even if it's already inside the network perimeter.
Why it matters
Traditional "castle and moat" security assumes that anything inside the network is safe. Zero trust rejects that assumption — every request is authenticated, authorized, and encrypted, regardless of where it originates.
Core components
- Identity verification for every user and device
- Least-privilege access — grant only what's needed, nothing more
- Micro-segmentation to limit lateral movement
- Continuous monitoring of sessions, not just login events
Getting started
Zero trust is a journey, not a single product. Most teams start with strong identity (MFA everywhere), then layer in device posture checks and network segmentation.
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