What is Atos DFIR?
Our digital forensics and incident response (DFIR) services help you investigate, contain and recover from cyberattacks. Our certified experts identify external and internal malicious threat actors across endpoints, networks, applications, cloud and operational technology (OT). We offer DFIR services through an incident response retainer or as emergency support – anytime, anywhere.
With our DFIR services, your business can benefit from:
- Certified, in-house cyber experts who are active members of FIRST, ENISA, and TF CSIRT Trusted Introducer
- A full-fledged CSIRT to work with diverse technologies and vendor solutions
- Our deep industry expertise in implementing comprehensive remediation strategies
- Forensic tools at no additional cost
- Guaranteed response with agreed SLAs for retainer clients
- Recommendations for future resilience
Key features of our DFIR services
Human expertise
Leverage hundreds of battle-tested frontline responders and consultants known as cyber heroes or cyber-veterans.
Round-the-clock support
Engage us for incident forensics or round-the-clock breach support.
Flexible engagements
Use part of the unused retainer funds towards other proactive services.
Custom processes
Adapt our proven response processes to your specific security needs.
A cross-functional response
Get a collaborative experience with crisis comms, incident notifications and legal teams.
Global and local coverage
Tap into 18 global security operations centers (SOC) with local support for most regions.
What our DFIR services include
Breach investigation
Our incident responders analyze each case to determine whether the breach is external or internal. We assess the scope, timeline, root cause, patient zero and impact of the breach, ensuring a comprehensive understanding of the situation.
Collection and analysis
Our digital forensic experts conduct thorough artifact collection, examination, and analysis of applications, data, networks, and endpoint systems, both on-premises and in cloud infrastructure. This meticulous approach ensures that no detail is overlooked.
Malware analysis
The malware is detonated in a controlled lab environment that replicates real-life ecosystems, enabling our experts to reverse engineer and identify threats and vulnerabilities within the code. This comprehensive exercise provides actionable insights to address the vulnerabilities and avoid any emerging threat.
Ransomware and severe incidents
Our computer security incident response team (CSIRT) has managed complex breaches worldwide, addressing threats posed by cybercriminal groups and state-sponsored attackers. Our systematic support includes containing the threat, respond to the attack and support with remediation and recovery to resume normal operations.
Regulatory support
Our team assists you with notifying relevant regulatory authorities, providing supporting evidence in the applicable jurisdiction to ensure compliance and transparency. This enables companies to reduce the risk of legal penalties and fines related to data breaches and security violations.
SLA-driven response
The speed of response and containment is crucial during an ongoing breach. Our experts provide swift responses, prioritizing risks based on the potential business impact. This approach establishes a clear framework and accountability in case of a cyber incident.
Collaboration with MSS and MDR
Our incident responders routinely collaborate with managed security services (MSS) and managed detection and response (MDR) providers, including our teams, for a rich and effective collaborative experience. Together, we can build a robust defense against emerging threats.
Compromise assessment service
Our compromise assessment is an add-on service which evaluates your organization’s network and systems for signs of compromise. It identifies security breaches that may bypass traditional measures, helping organizations address vulnerabilities, prevent data breaches, reduce financial losses and protect their reputation by promptly mitigating security threats.
How our DFIR services work
Our global CSIRT brings decades of frontline experience, mastering complex breaches worldwide. Our experts, from threat hunters and ethical hackers to security researchers, constantly analyze evolving TTPs. This deep expertise directly informs how we execute each phase of your incident response.
1. Preparation
We evaluate your network and security systems to develop an incident response plan, including detailed playbooks and communication strategies, ensuring you’re prepared ahead of time for an incident.
2. Identification
We precisely gather and analyze security events, allowing us to confirm incident status. We then define the scope of work and select the appropriate process, ensuring rapid and accurate threat assessment.
3. Containment
Our teams act quickly to halt further damage, produce forensic images (copies of digital evidence), collect and examine evidence to assess containment, and compile intelligence to develop indicators of compromise (IOCs).
4. Eradication
Thoroughly removing the incident’s root cause is our next step. We eliminate malicious code, reverse unauthorized system changes, enforce password resets, implement IP blocking, etc. for a clean, secure environment.
5. Recovery
Our teams will restore your systems to normal operation, implement system hardening and other safeguards to prevent future incidents, and closely monitor any security threats to ensure online services are fully reinstated.
6. Follow-up
Finally, we document actions taken during all phases. We conduct a comprehensive post-incident review, identifying lessons learned and recommending strategic actions to strengthen your long-term security.
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.
Paris 2024
Securing the Paris 2024 Olympic and Paralympic Games
As athletes faced off in healthy competition at the Olympic and Paralympic Games Paris 2024, our cybersecurity experts were working tirelessly behind the scenes, providing crucial protection at every digital surface for seamless global transmission and delivery.
Harnessing the Power of We
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.
