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Zero Trust Security Model
Security

Zero Trust Security Model

7/27/20256 minSecurity

Gone are the days when a strong firewall and VPN access were enough. In a cloud-first, remote workforce era, Zero Trust is becoming the standard model for securing systems and users.

What is Zero Trust?

Zero Trust is a security framework that assumes no user, device, or system should be trusted by default — even if it’s inside the network.

"Never trust, always verify."

Core Principles

1. Verify Explicitly

Authenticate and authorize based on:

  • User identity
  • Device health
  • Location
  • Time and behavior

2. Least Privilege Access

Give users only the access they need — nothing more. Continuously monitor and revoke unused permissions.

3. Assume Breach

Design systems as if a breach has already occurred. Isolate resources and monitor every interaction.

Why It's Needed

  • Rise in remote work and BYOD (Bring Your Own Device)
  • Growth of microservices and cloud-native apps
  • Increased phishing attacks and lateral movement

Technologies That Enable Zero Trust

  • Identity Providers (Okta, Azure AD)
  • Conditional Access Policies
  • Endpoint Detection and Response (EDR)
  • Network segmentation and software-defined perimeters

How to Start

  1. Inventory users, devices, and data
  2. Classify access needs
  3. Implement MFA and identity-based segmentation
  4. Monitor and audit continuously

Zero Trust isn’t a product — it’s a philosophy. By aligning your architecture to Zero Trust principles, you reduce the blast radius of attacks and increase resilience.