CyberOne’s Assure 365 is a fully managed Microsoft Security service designed to deliver measurable cyber resilience, strategic clarity and operational peace of mind. It provides modular, outcome-focused protection across your Microsoft environment—so you stay secure, compliant, and ready to grow.
Powered by the full Microsoft Security suite and realised by CyberOne’s expert team, Assure 365 helps shift your focus from technical firefighting to long-term resilience.
Assure 365 combines 24x7 protection, expert guidance, and proactive security management. Whether you're looking to strengthen identity security, harden endpoints, protect sensitive data, or monitor your digital estate, each service module works together to protect what matters most to your business.
Key Benefits:
Immediate Risk Reduction: Achieve day-one security uplift through proven baselines and remediation plans.
Lower Total Cost of Ownership: Optimise your Microsoft investments and reduce reliance on fragmented third-party tools.
Measurable Security Outcomes: Demonstrate progress with Secure Score uplift, compliance alignment and executive-ready reporting.
Operational Confidence: Offload cyber security management to CyberOne's accredited SOC and certified professionals.
AI & Microsoft 365 Copilot Ready: Prepare your environment with governance, data protection and threat detection optimised for AI.
Only 13% of UK organisations consider themselves resilient, and nearly half are classified as vulnerable or high-risk (Microsoft Mission Critical Report). Thus, leadership engagement, strategic focus, and specialist support are clearly critical.
Assure 365 addresses this head-on—aligning cyber strategy with business goals and empowering leaders with visibility, intelligence and control.
Assure 365 is delivered through a structured yet flexible framework, designed to meet you where you are and support continuous improvement:
Assess – Understand your current posture with a Microsoft 365 Security Review, licensing optimisation and risk identification.
Build – Implement minimum viable baselines and foundational protections using Microsoft Secure Score remediation and rapid hardening.
Manage – Deliver ongoing protection via 24x7 SOC, automated response, proactive threat hunting and continuous monitoring.
Inform – Support strategic planning with regular reviews, reporting, leadership engagement and roadmap planning.
Assure 365 protects your entire Microsoft 365 environment, leveraging:
Microsoft Defender XDR – Endpoints, identities, email, cloud apps.
Microsoft Sentinel – Threat detection, automation, and SIEM/SOAR.
Microsoft Entra ID – Identity protection, access controls, lifecycle management.
Microsoft Purview – Data security, privacy, compliance and insider risk.
Microsoft Intune – Endpoint management, compliance, patching and DLP.
Microsoft Priva – Consent, privacy and subject rights management.
“Assure 365 isn’t just a security service. It’s a strategic enabler, built to reduce risk, maximise Microsoft ROI and empower business growth.”
— Dominic List, CEO & Founder, CyberOne
With guaranteed service levels, expert guidance and CREST/NCSC-accredited support, Assure 365 helps leaders move beyond cyber uncertainty—enabling confident, informed decisions and a clear return on security investment.
Book a consultation with a Microsoft Security expert and discover how Assure 365 can strengthen your defences, simplify operations, and support your business growth.