Atos || Transform Security Operations with Atos Sovereign MXDR integrated with Microsoft

Security operations are struggling under rising complexity, fragmented tooling, and increased regulatory pressure. Organizations still run multiple standalone tools, generating uncorrelated alerts, noise, delays, and greater exposure.

Atos Sovereign MXDR, integrated with Microsoft, replaces this with a unified, intelligence-led operating model that delivers 24x7 sovereign detection and response. All with the Microsoft security technologies you already own.

Integrated with Microsoft and built on Microsoft Defender XDR and Microsoft Sentinel, Sovereign MXDR consolidates endpoint, cloud and data activity signals a single correlated view. Automated playbook investigation and response workflows accelerate containment, reduce manual effort, and strengthen resilience across hybrid, multi-cloud and legacy environments. Critically, your data remains within your tenant, so you maintain full control over your data.

Designed for both commercial and highly regulated sectors, the service is delivered by analysts from sovereign facilities, ensuring compliance with national security, public sector and critical national infrastructure requirements.

With Atos, you bring the Microsoft licensing; we bring the sovereign operations, optimization, tuning, threat hunting and automation. Not to mention 20+ years of Microsoft experience and the highest levels of cybersecurity and sovereignty expertise. Eligible customers may also benefit from Microsoft-funded engagements to accelerate adoption and reduce onboarding effort.

With Atos Sovereign MXDR, integrated with Microsoft, you can:

• Strengthen cyber resilience with unified visibility and AI-driven detection and response

• Maximize your Microsoft investment by activating and optimizing Microsoft Defender XDR and Microsoft Sentinel

• Reduce cost and complexity by consolidating security technology into the Microsoft security ecosystem

• Achieve sovereign control with analysts and national-level delivery centers. Data remains in your tenant, fully under your control.

• Accelerate SOC modernization through automated playbook investigation, response and continuous tuning

• Meet regulatory and compliance requirements with auditable, transparent security operations

• Free up resources with Atos’ Managed Service, to focus on strategic initiatives aligned to your business objectives

• Leverage Microsoft-funded programs to accelerate innovation, security maturity and improve ROI

Key Features

• 24x7 sovereign detection and response delivered by analysts

• Microsoft Defender XDR + Microsoft Sentinel integrated SOC operating model

• AI-driven investigation and automated incident response

• Playbook development to further accelerate detection, response and mitigation of the evolving threat landscape

• Unified telemetry across endpoint, network and cloud

• Advanced threat hunting aligned to threat landscape

• Continuous tuning to reduce false positives and improve fidelity

• Tenant-based access via Azure Lighthouse with customer-controlled permissions and no data movement

• Monthly service briefings and posture insights

• Flexible service tiers aligned to Microsoft E3/E5 capabilities and customer maturity

Why Atos and Microsoft

• More than 20 years of collaboration, supported by 30+ solutions

• Atos is recognised by Microsoft for its expertise in security and advanced managed services on Azure.

• Advanced specializations in cloud security, threat protection and identity and access management

• Recognised provider of managed detection and response services, collaborating closely with Microsoft on advanced security solutions.

• 17+ Security Operations Centers and 6,500+ cyber experts delivering global intelligence with sovereign capability

• Award-winning MXDR services recognized for excellence in detection, response and SOC transformation

• Proven sovereign delivery across government, defense, public sector and critical national infrastructure

Customer Proof Points

• UK national public sector organization operating critical digital services: Unified security operations through Microsoft's integrated platform combining Sentinel and Defender XDR to deliver an auditable and sovereign security operating model across cloud and application environments.

• Large European banking group with distributed operations: Strengthened protection of sensitive data and executive environments using Microsoft Defender XDR and 24x7 SOC monitoring delivered by Atos.

Call to Action

• Request a free MXDR assessment workshop

• Book a consultation Atos Sovereign MXDR specialist