What are TDIR services?
Threat detection, investigation and response (TDIR) services bring together proactive protection and detection, thorough investigation and rapid response when incidents happen. They help you maintain business continuity, protect your brand and reduce financial impact.
If resources are tight, the model stays flexible and technology-agnostic. A threat-informed, risk-based approach helps you focus security investment where it matters most, while integrating smoothly into your existing security ecosystem.
With our TDIR services, your business can:
- continuously monitor threats across networks and devices to support near real-time response, even with limited in-house resources
- access dedicated experts and advanced tools for in-depth investigations, including entry-point analysis and threat actor identification
- establish plans and procedures to prepare for incidents, restore operations quickly and minimize disruption
- strengthen defenses through ongoing vulnerability assessment and proactive detection of emerging attacker tactics
Atos TDIR by numbers
18
Security operations centers
6,500
Cybersecurity experts
2,000+
Trusted customers
20+
Years of cybersecurity leadership
31 billion
Security events processed per day
Our TDIR services
A full range of specialized TDIR services can be tailored to your requirements, with flexible, scalable options to strengthen security and resilience.
Managed detection and response (MDR)
AI-powered security, stronger resilience. Managed detection and response (MDR) provides round-the-clock protection, detection and response across your digital environment. Benefit from deep industry expertise for AI-driven security management and reduced downtime, integrated with your existing technology stack.
Managed endpoint detection and response (MEDR)
Strengthen your endpoint security and reduce breach impact. MEDR provides advanced detection, investigation and response with full visibility and control across devices, helping reduce attacker dwell time. Available as a standalone service or as part of MDR.
Digital forensics and incident response (DFIR)
Rapid, expert-led response when every second counts. Global DFIR teams combine forensic expertise with local presence to investigate and contain sophisticated threats. Services include emergency response, proactive compromise assessments and incident response retainers, available on demand, 24/7.
Attack surface management
Uncover hidden exposures. Attack surface management (ASM) provides a unified view of external attack surface, highlighting infrastructure vulnerabilities (EASM and vulnerability management) and broader digital risks (DRPS). Gain clear visibility to prioritize threats, focus resources and protect critical business assets.
Incident preparedness
Reduce the impact of incidents by strengthening resilience before disruption hits. Exercises range from strategic tabletop sessions to technical cyber drills and cyber range simulations, preparing teams for effective response and recovery. Cyber recovery plans and crisis simulations, including communication playbooks, help support readiness.
Threat hunting
CERT-led threat hunting helps uncover threats that automated tools can miss. Hypothesis-driven investigations draw on frontline experience, threat intelligence and behavioral analysis to identify malicious activity early.
Cyber threat intelligence
Go beyond standard threat feeds with curated, contextual insight drawn from diverse sources and tailored to your industry and infrastructure. Actionable intelligence helps you anticipate threats and make better security decisions based on attacker motivations and tactics.
Why choose our TDIR services?
Comprehensive services
A full range of TDIR services, from proactive hunting to incident recovery, tailored to your needs.
Proven expertise
Backed by 20+ years in cybersecurity, with proven methodologies applied across engagements.
Technology-agnostic approach
Use the right technologies for your environment, integrated smoothly into your existing security ecosystem.
How our TDIR services work
1. Understand your needs
Assess your environment, challenges and concerns to identify where services add the most value.
2. Tailor our services
Recommend the right mix of TDIR services based on priorities and budget, and explain how they integrate with operations.
3. Seamless integration
Implement through solution integration, deployment or tailored operational activities, depending on what you need.
4. Continuous improvement
Review effectiveness regularly, adapt to threats and adjust services to maintain a strong security posture.
Orange bank
Monitoring to Mitigation: Elevating confidence with end-to-end security
“In our Microsoft 365 Workplace environment, we greatly appreciate the support and expertise of ATOS security teams, and their end-to-end delivery (SOC, EDR, CSIRT, ETM, MDO). They give us greater confidence in the daily protection of our devices through robust tools, continuous monitoring, and a proactive approach. The teams are committed and attentive, and operational meetings are conducted with rigourous action tracking and high-quality reporting.”
Luc BARBAUT, ORANGE BANK, Workplace Manager.
Harnessing the power of we
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Awards
At Cybersec Europe 2025 in Brussels, Atos achieved the ‘Best Cybersecurity Project in Europe’ award. This prestigious honor recognizes our dedicated efforts in securing the Paris 2024 Olympic and Paralympic Games.
