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Zero Trust in Action: How Microsoft is Redefining Corporate Security

by Spanish Point - Sep 12, 2023
Zero Trust in Action: How Microsoft is Redefining Corporate Security

The old security solutions that rely on network firewalls and virtual private networks (VPNs) to protect corporate resources are no longer sufficient in today’s fast-paced and interconnected digital ecosystem. A fresh approach to security is necessary given the growing use of cloud-based services, mobile computing, IoT, and BYOD in the workplace. Microsoft has started a path to internalize a Zero Trust security strategy since it understands this developing paradigm.

What is Zero Trust?

The primary principle of Zero Trust is that it verifies trust: unlike in the conventional business network, where confidence is presumed, it must be earned and proven at every stage. By establishing rigorous identity verification, confirming device compliance prior to authorizing access, and granting the least privilege access to just approved resources, this strategy aims to reduce risks across all contexts.

Key Components of Zero Trust:

  1. Verified Identity: To minimize password-related vulnerabilities, multifactor authentication (MFA) is used everywhere. Biometrics improve authentication security even further.
  2. Device Verification: The management and health validation of devices. For access, all operating systems and device types must adhere to minimal health criteria.
  3. Telemetry: To evaluate the security posture, pinpoint holes, verify new controls, and correlate data across all applications and services, pervasive data and telemetry are employed.
  4. Least Privilege Access (LPA): Access is limited to programs, services, and infrastructure required for carrying out duties. Segmentation-free broad access options like VPNs are discontinued.

Zero Trust Scenarios:

Microsoft has identified four core scenarios to achieve Zero Trust:

  1. Applications and services check the device’s health and multifactor authentication.
  2. Devices can be added by employees to a cutting-edge management system that guarantees device health for resource access.
  3. Even without a controlled device, employees and business visitors have access to company services.
  4. Least privilege access is enforced by limiting access to resources to the bare minimum required for certain tasks.

Zero Trust Scope and Phases:

Implementing Zero Trust is a structured, multi-year effort that spans various technologies and organizations. Microsoft’s approach is grouped into four pillars:

  1. Verify Identity
  2. Verify Device
  3. Verify Access
  4. Verify Services

A Transition in Progress:

Over the past several years, Microsoft’s shift to a Zero Trust paradigm has advanced significantly. The strength of identity authentication has been increased, device management and health validation have been implemented across key platforms, and Windows Virtual Desktop has been created for safe access from unmanaged devices. Ongoing expenditures include enhancing virtual desktop features, enhancing health-validation capabilities, and updating or terminating legacy apps.


Organizations need to adopt a Zero Trust security strategy in order to change with the technological environment. Businesses seeking to improve their security in the face of changing digital problems might use Microsoft’s path as a model. Although it necessitates thorough preparation, ongoing investment, and organizational-wide commitment, the path to Zero Trust offers the prospect of a safer and more secure future in the digital sphere.