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M365 Security and Compliance

With Prolinx Secure M365 service


Customers seeking a secure, controlled, Government assured, and MOD Assured M365 solution. This environment is designed with proper configuration, access controls, and assurance to manage, transmit, and process protectively marked data. M365 Security and Compliance is fully managed by Prolinx as part of the service.


MOD Assurance levels, Commercially Assured for non-protectively marked data, providing secure by design, resilient, and high availability solutions.


Prolinx Assured Cloud, MOD networks, and other customer networks adhering to required security controls.


Prolinx’s Secure M365 offers a fully managed, assured, and protected collaborative workspace.

Our UK sovereign service includes secure remote access coupled with a range of leading cloud-based productivity and official sensitive collaboration software tools.

Organisations processing protectively marked or sensitive data through regular M365 public cloud services face challenges in securing data and conforming to stringent UK Government standards.

Compliance with National Cyber Security Centre (NCSC) and National Institute of Standards and Technology (NIST) guidelines is crucial during the design, deployment, and ongoing operation of the service.

To address these challenges, Prolinx has leveraged its expertise in delivering secure managed services to the MOD, resulting in a rapidly deployable solution that provides the required functionality along with comprehensive M365 Security and Compliance.

Our service covers design, accreditation/assurance, connectivity, monitoring, and ongoing assurance for secure processing of protected data within the M365 software and tools.

Supported by our 24/7 in-house Support Desk, Security, and Network Operations Centre, this allows customers to concentrate on exploiting collaboration features and project delivery while we manage the environment, assurance, and compliance activities.



Flexible, scalable, and easily accessible, Prolinx Secure M365 increases productivity and is available via approved remote devices.

OneDrive allows your work to be available to you and authorised parties from anywhere.

Enable unified collaboration from multiple locations, combining Secure M365 with Prolinx Secure User Access options, allowing geographically dispersed teams to access email, documents, contacts, and data remotely.

Manageable as a subscription service with transparent costs, promoting maximum budget planning for best value for money.

Running applications and processing data in the Prolinx Assured Cloud ensures that all your business applications fulfill the necessary M365 compliance requirements.

With the Prolinx subscription service, you always have the most up-to-date productivity tools from Microsoft, complete with the latest security patches.

Supported by Prolinx’s UK based 24/7 Service desk certified to ISO/IEC 20000.



Prolinx Secure M365 empowers customers to be innovative and focus on their core organisational goals. 

By enabling secure access, processing, and sharing of sensitive data with authorised parties, you can utilise the following applications: Microsoft Outlook, OneDrive, Word, Excel, PowerPoint, OneNote, SharePoint, and Teams.

Prolinx ensures that deployment adheres to stringent UK Government standards, NCSC and NIST principles and guidance. 

Strict controls, monitoring, and ongoing maintenance are in place to ensure M365 compliance throughout the service lifecycle.

As new features and applications are integrated, they will be made available in future releases for customers to incorporate into their existing service.