Cybersecurity
Zero Trust
Definition
Zero Trust is a security model based on the principle of maintaining strict access controls and not trusting anyone or any device by default, even those already inside the network perimeter. The core philosophy is "never trust, always verify."
Why It Matters
Traditional security models ("castle-and-moat") trusted everyone inside the network. Zero Trust recognizes that threats can be internal as well as external. It provides a more robust security posture for the modern world of cloud computing and remote work.
Contextual Example
In a Zero Trust architecture, a user must authenticate and be authorized every time they try to access an application, regardless of whether they are in the office or at home. Their device's security posture is also checked before access is granted.
Common Misunderstandings
- Zero Trust is a strategic approach and a mindset, not a single product you can buy.
- It involves concepts like micro-segmentation, strong multi-factor authentication, and strict access control policies.