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    Zero Trust: Why Being Inside the Network No Longer Means Anything in Cybersecurity0%
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    Security·30 Déc 2025

    Zero Trust: Why Being Inside the Network No Longer Means Anything in Cybersecurity

    By Helion Cloud Team

    An employee connected to the company VPN is no longer automatically trustworthy. Here's how the Zero Trust model with Microsoft Entra ID verifies every access, every time.

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    The Zero Trust model 'Never trust, always verify' has become the recommended security standard. With hybrid work and the proliferation of devices, the traditional network perimeter no longer exists. Identity is the new central control point.

    01

    Zero Trust fundamentals

    Explicitly verify every access. Apply least privilege. Assume breach. These three principles guide all architecture decisions. Every request is authenticated, authorized and encrypted, whether it comes from inside or outside the network.
    02

    Microsoft Entra ID: the central pillar

    Entra ID (formerly Azure AD) is the heart of Microsoft's Zero Trust strategy. Risk-based conditional access, phishing-resistant MFA with FIDO2, device posture verification - all these protections apply to every connection.
    03

    SASE and Zero Trust network access

    Microsoft Entra Internet Access and Private Access modernize network access. Application access is granted based on identity and context, not just network location. Security follows the user wherever they are.
    04

    Implementation roadmap

    Start by inventorying your identities and assets. Enable MFA for everyone. Deploy conditional access. Segment your applications. Implement threat detection. This progression allows gradual adoption without disrupting operations.

    Summary

    Zero Trust is not a product to buy but a strategy to implement progressively. As a Microsoft Security specialist in Lille, Helion Cloud guides companies in this transformation of their security posture.

    Sources and references

    Microsoft Zero Trust Microsoft Entra

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