M365 Security, Backup and Assurance

Your Microsoft 365. Secured. Managed. Assured.

Microsoft 365 is the backbone of your business - your emails, files, contacts, and communications all live there. So do the targets attackers go after every day. Phishing, account takeover, and ransomware regularly succeed against organisations just like yours, often because no one is watching. This is where Assured 365 can help.

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Stay secure, supported, and in control of Microsoft 365

Microsoft 365 underpins how organisations communicate, collaborate, and operate, but without the right protection, it also creates exposure to data loss, cyber threats, and compliance risk.

Assured 365 provides a complete, managed approach to securing your Microsoft 365 environment - combining security, backup, and user support into a single, accountable service.

 
Outcomes

Protect, recover, and stay operational

Robust, managed protection for Microsoft 365

Take control of Microsoft 365 with a fully managed service that protects users, secures data, and ensures your environment is monitored, supported, and resilient.
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Protected

Continuous, 24/7 monitoring, security baseline enforcement, and rapid incident response to reduce exposure to cyber threats.
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Be resilient

Daily backup of emails, files, Teams, and SharePoint data with tamper-proof, immutable storage outside Microsoft’s platform.
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Simplified security

Achieve and maintain a robust security posture, adapt to evolving threats, and keep your M365 tenant aligned with best practices.
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Assured & ready

Receive annual structured support and evidence to achieve or renew Cyber Essentials or Cyber Essentials Plus certifications.

Find out more about the outcomes we drive for customers using technology.
Cyber Resilience

Flexible Microsoft 365 protection, tailored to your business.

Assured 365 is a modular service that gives you the flexibility to build a tailored solution for your business's needs. Every Assured 365 solution starts with the Core module as a foundation, with additional modules added as required, including Backup, End User Support, Security Awareness Training, Advanced Security and Cyber Essentials Certification support.

Assured 365 removes the burden of managing Microsoft 365 internally, replacing fragmented tools and reactive processes with a single, accountable service.

From security configuration and monitoring to backup and user support, everything is managed for you - so your team can focus on the business, not managing M365.

Assured-365

Feel confident in your Microsoft 365 environment


A modular service for security, backup, and support

Reduce risk, remove complexity, and keep your Microsoft 365 environment secure, supported, and recoverable - so your business can operate with confidence.
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Assured
Core

The foundation of Assured 365. We manage your M365 tenant, configure and continuously maintain its security to the Cyber Essentials standard, and monitor it 24/7. A named Service Manager is your single point of accountability, with monthly health reports and quarterly strategic reviews.

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M365
backup

Daily independent backup of all M365 data - emails, files, SharePoint, and Teams, all stored outside Microsoft’s infrastructure with immutable, tamper-proof copies. If your data is lost, deleted, or encrypted by ransomware, we restore it. Add-on plans extend retention and cover identity data.

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End user
support

Unlimited helpdesk support for your entire team, available business hours or 24/7. We also fully manage your Windows (or Mac) devices — enrolling, patching, and maintaining compliance through Microsoft Intune. Every supported device is a secured device. Your team always has someone to call.

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Advanced
security

24/7 identity threat monitoring delivered by a dedicated Security Operations Centre. We detect account compromise, credential attacks, and suspicious sign-in activity with human-verified alerting, so we respond to real threats, not automated false positives, to keep your tenant secure.

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Security awareness
training

Monthly phishing simulations and targeted security training for all staff. Users who engage with a simulated phishing email are automatically enrolled in short, focused training. Over time, this measurably reduces susceptibility to real attacks and builds a security-conscious culture.

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Cyber Essentials
certification

Annual structured support to achieve and renew Cyber Essentials or Cyber Essentials Plus certification. Because Core continuously maintains your environment to the Cyber Essentials standard, you are always certification-ready. We handle the preparation, evidence, and process.

Holistic 365 protection, with supported by experts.

With Assured 365, your Microsoft 365 tenant is continuously maintained in line with recognised security standards, with 24/7 monitoring and expert-led response to identify and contain threats before they impact your business.

With independent backup, your emails, files, Teams, and SharePoint data are always protected and recoverable, even in the event of accidental deletion, insider activity, or ransomware.

In the modern cyber landscape, the question is not whether your business will be targeted. It is whether you will be protected when it is. Assured 365 offers robust protection against attacks and robust recovery options should you need them. 
The question is not whether your business will be targeted. It is whether you will be protected when it is.

 

Deep capability and a partner with accountability.

Assured 365 brings your Microsoft 365 security, backup, and support into a single, fully managed service.

Choose the modules that fit your organisation's requirements, goals and risk profile — for a truly bespoke solution, whatever your user count or use case.

You'll work with a dedicated Service Manager who understands your business and the way you work. You'll receive regular security health reports to keep you informed, with quarterly strategic reviews to keep you on track.

Assure 365 capability overview:

> Security aligned to Cyber Essentials/Cyber Essentials Plus
> Protection for Exchange, Teams, SharePoint and OneDrive
> Monthly reporting and security health checks
> Quarterly strategic reviews and service optimisation
> Named Service Manager
> Optional: Independent, immutable Microsoft 365 backup
> Optional: Unlimited user helpdesk support
> Optional: Security awareness training & phishing simulations
> Optional: 24/7 monitoring and incident response
> Optional: Cyber Essentials/Cyber Essentials Plus cert support 

Assured Users
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Let's discuss your requirements

Speak directly with our Microsoft experts for tailored advice and guidance on how DCS can support your M365 cyber protection and data resilience strategy and goals.

Book a Call

Why DCS?

Deep expertise in Microsoft 365 security, backup, and managed services - with expert support you can rely on.

 

Proven experience
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DCS is a specialist in Microsoft 365 and cloud security, with proven experience protecting business-critical environments.
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Experienced Service Managers with deep expertise in Microsoft technologies and platforms.
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DCS underpins the IT strategy for a range of leading organisations in retail, healthcare, government, and finance.
Technical capability
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We've developed award-winning solutions to enhance the backup and recovery of Microsoft 365.
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Our Microsoft backups are immutable and stored away from Azure to ensure you can restore your data with confidence.
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We are ISO 9001, 27001 & Cyber Essentials certified, and members of the G-Cloud 14 framework.

FAQs

Below are some of the most common questions we’re asked by organisations exploring how DCS can help strengthen their Microsoft 365 security and resilience posture.