

Built for csmv4 compliance.
ready for defence delivery.
Cyber Security Model (CSMv4) sets the standard for how suppliers protect MOD-Identifiable Information. It determines what controls apply to your contract and forms the backbone of MOD’s supply chain assurance.
If your organisation is working towards, or already operating under Def Stan 05-138, DISX provides a proven, ready-to-use environment aligned to all the CSMv4 technical requirements – simplifying compliance and strengthening assurance from day one.
Whether you’re preparing for your first MOD contract or managing multiple CRP-level projects, DISX removes barriers by giving you a secure cloud-based solution that evidences compliance and supports delivery at pace.


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Compliance Without the Complexity
DISX is a secure managed workspace designed for projects handling MOD or other Official-Sensitive information. It integrates the technical controls required under Defence Standard 05-138 and CSMv4, including:
- Identity and access management
- Encryption at rest and in transit
- Continuous monitoring and patching
- Data segregation and endpoint protection
- Secure collaboration and file transfer
Aligned to MOD Expectations
DISX supports assurance at the highest cyber risk levels (CRP3) and underpins evidence for Defence Cyber Certification (DCC).
It provides the secure infrastructure, auditability and documentation trail needed to demonstrate your adherence to Def Stan 05-138 – ensuring your compliance posture stands up to scrutiny.
Defence suppliers can confidently respond to SAQs and audits knowing that the underlying environment has been built to meet the MOD’s own standards of protection and control.
Trusted by defence primes, SMEs and government delivery teams to meet MOD information-assurance requirements.
SECURE MANAGED SERVICE WITH A DIFFERENCE
Unrivalled secure cloud service for all organisations subject to stringent regulations
Zero trust architecture and multi-layered, robust security controls, including:
Rapidly deployable, scalable and built around M365 for maximum productivity
