Never Trust, Always Verify
The old model of ‘trust but verify’ inside the network perimeter is dead. With remote work and cloud apps, the perimeter is gone. **Zero Trust** is a security model that assumes no user or device, inside or outside the network, should be trusted by default.
Core Principles
- Micro-segmentation: Divide the network into small zones with strict access controls between them. A breach in one zone doesn’t an an admin’s laptop is treated with the same suspicion as an unknown device on guest Wi-Fi.
- Least Privilege: Users and applications get only the minimum access needed for their job, for the shortest time possible.
Implementation in the US
US government agencies are under executive order to adopt Zero Trust, and the private sector is following suit. It’s a shift from network-based to identity-based security.
