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SOC managé et MDR pour les PME et ETI

Cyber threats don't have office hours, they don't stop at 6 p.m. on Fridays ...
Cybercriminals exploit moments of least vigilance to strike: ransomware, targeted phishing, rebound attacks or compromised admin accounts.

In this context, installing an EDR without active monitoring is no longer enough. An agent that detects but whose alerts are neither analyzed nor processed leaves your company vulnerable.
It is precisely to meet this need that IT Systèmes has designed its 24/7 managed SOC, operated in France, combining EDR/XDR technologies, a SIEM platform and human supervision.

Our analysts continuously monitor your systems, investigating every alert and triggering the necessary remediation actions.
Our aim: to detect threats before they become incidents, reduce reaction time and sustainably strengthen the security of your information system.

MDR or Managed SOC: What's the Difference?

MDR, which stands for Managed Detection and Response, is a monitoring and response service built on top of an existing XDR solution. A service provider handles security incidents that this solution flags on workstations, servers, email systems, and identity management platforms, and then takes action: isolating a workstation, blocking an account, or deleting a file. It can be deployed quickly because it builds on a tool you already own.

The managed SOC covers the same areas and adds logs from servers, Active Directory, DNS, DHCP, backups, Wi-Fi, front-end firewalls, and Microsoft 365 services (Exchange Online, SharePoint, OneDrive, Teams, Entra ID). It supports custom detection rules and log retention.

The difference comes down to three points.

  • What is detected. An MDR service only sees what the XDR solution reports. It misses attacks that pass through the firewall, machines on which the agent has not been deployed, and certain techniques targeting Active Directory. The SOC has additional sources and covers these blind spots.
  • What we can control. The MDR manages workstations, email, and identities. The SOC also manages Active Directory and firewalls, and can be extended to other environments.
  • Traceability. Log retention is not part of the standard scope of an MDR. It is part of the scope of a SOC, which is important when it comes to proving compliance with NIS2, DORA, or ISO 27001.

IT Systèmes operates both services from France. The choice is based on the scope to be covered and the need for traceability, not on the level of requirements: a well-run MDR is better than a poorly structured SOC.

Our SOC expertise

24/7 monitoring from a French SOC

Our analysts provide continuous monitoring of your workstations, servers, networks and cloud environments. The IT Systèmes SOC, based in France, centralizes and analyzes security events to detect any suspicious behavior, even outside working hours. Every critical alert is handled immediately, with full follow-up until it is resolved.

EDR and XDR solution management

We take care of the complete management of your EDR/XDR solutions (Microsoft Defender for Endpoint, SentinelOne). Installing an EDR without supervision or alert processing is like setting an alarm without ever looking at the dashboard. IT Systèmes analyzes each alert, eliminates false positives, identifies real threats and initiates the appropriate response: isolation, blocking, suppression or remediation.

Correlation and detection via SIEM

All security data (system logs, network logs, cloud events, authentications, etc.) are centralized in our SIEM. This correlation platform detects anomalous behavior and multivector attacks invisible to an isolated tool. By linking all security signals, we offer complete, contextual visibility of your actual exposure.

In-depth incident investigation and analysis

When an alert is detected, our analysts carry out a complete investigation: identification of the source, analysis of the attack vector, scope of impact and corrective recommendations. Each incident is documented, categorized and tracked according to its criticality. This approach enables us to understand the causes, strengthen the defense and avoid any recurrence.

Immediate response and remediation

In the event of a confirmed threat, our teams intervene without delay. We isolate compromised systems, block malicious connections, remove infected files and guide your IT teams to full service restoration. This rapid containment phase is essential to limit operational and financial damage.

Reporting, traceability and continuous improvement

Chaque mois, un rapport complet est transmis à vos responsables IT ou RSSI : alertes détectées, incidents traités, temps moyens de réaction, évolutions et recommandations. Ce suivi structuré assure la traçabilité, fournit des preuves utiles à vos démarches de conformité (RGPD, ISO 27001, NIS2, DORA) et soutient l'amélioration continue de votre posture de cybersécurité.

Why work with IT Systèmes?

  • A French SOC operated and hosted in France, guaranteeing data sovereignty and confidentiality.
  • 24/7 continuous monitoring by experienced, certified analysts.
  • Complete management of EDR/XDR solutions, from configuration to alert and remediation management.
  • Advanced correlation via SIEM to detect complex, targeted attacks.
  • An immediate response in the event of an incident, including containment, mitigation, and a detailed report.
  • A clear contractual approach, tailored to your size and safety requirements.
  • Close collaboration between our SOC and your in-house teams or IT service providers.
  • Des preuves de surveillance et de traçabilité utiles à vos démarches RGPD, NIS2, ISO 27001 et DORA.
  • A trusted partner, deeply rooted in the French cybersecurity ecosystem and recognized for its expertise in Microsoft and cloud security.

‍

Learn more:

→ Our managed SOC is part of our IT outsourcing offering for small and medium-sized businesses.

→ Test your defenses with a penetration test and a phishing campaign.

Contact us
Illustration of the SOC solution by IT Systèmes

A clear, rapid and personalized approach

Make an appointment
01

Safety assessment and framing

We start with a precise mapping of your systems: technical scope, business priorities, Internet exposure and existing detection capabilities. This audit enables us to calibrate the SOC's supervision strategy and detection rules.
02

Integration of security tools and workflows

Logs from your EDR, servers, firewalls, messaging, Active Directory and Cloud environments are connected to our SIEM. We set up EDR/XDR agents and configure correlation scenarios adapted to your context.
03

Continuous monitoring and real-time detection

Events are continuously analyzed by our tools and analysts. Potential threats trigger immediate investigation and are prioritized according to severity and operational impact.
04

Incident response and remediation

When an attack is confirmed, we isolate the affected systems, remove the threat and guide your teams in restoring services. Every action is documented and integrated into a comprehensive incident report.
05

Monitoring and continuous improvement

Monthly reports and periodic steering committees provide a clear view of incidents, risk levels and any optimization required. This monitoring enables detection to be adjusted, remediation to be improved and the overall maturity of the security system to be enhanced.

Your IT experts

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FAQ SOC

What is a managed SOC?

A SOC, or Security Operations Center, is a monitoring center dedicated to the detection, analysis and response to security incidents, operated on behalf of the company by a specialized service provider such as IT Systèmes.This outsourced approach enables even medium-sized companies to benefit from a level of protection equivalent to that of large corporations, without having to set up their own internal SOC or mobilize resources 24/7.

Why isn't a BDU enough on its own?

Deploying an EDR without supervision is like installing an alarm without ever looking at the control panel.
The EDR detects abnormal behavior, but without human analysis, correlation and rapid reaction, alerts go unnoticed.
At IT Systèmes, our SOC analysts monitor, interpret and prioritize alerts generated by EDR/XDR.
They distinguish false positives from genuine threats, isolate compromised machines, block suspicious processes and initiate the necessary corrective measures.
It is this active, human management of EDR that makes all the difference between a passive alarm and a truly operational defense.

What's the difference between EDR, XDR and SIEM?

These three tools are complementary and essential in a modern cybersecurity system.

  • EDR (Endpoint Detection & Response): focuses on protecting and monitoring workstations and servers. It detects suspicious behavior and isolates threats at source.
  • XDR (Extended Detection & Response): extends detection coverage to the entire information system: workstations, servers, cloud, messaging, identities and network.
  • SIEM (Security Information and Event Management): centralizes all security logs and events for analysis and correlation, to identify coordinated or advanced attacks.
    IT Systèmes' managed SOC combines these three building blocks in an integrated approach: EDR for detection, SIEM for correlation and SOC for analysis and human response.

How does 24/7 SOC IT Systems monitoring work?

How does 24/7 monitoring work? Our SOC operates continuously, 24 hours a day, 7 days a week, 365 days a year.Detection tools collect events in real time, and our analysts maintain a constant watch, day and night.When an alert is generated, it is immediately assessed: technical analysis, verification of the impacted perimeter, identification of the risk and decision to take action.On-call teams can intervene remotely to isolate a workstation, block an account or initiate remediation. This permanent availability ensures that threats are dealt with instantly, even when they occur outside working hours - a critical point, as the majority of cyber-attacks occur in the evening or at weekends.

What happens when an alert is detected?

When an alert is received, it follows a three-stage process: analysis, investigation and remediation.

  1. Initial analysis: analysts assess the nature of the alert and its criticality, based on data provided by EDR/XDR and SIEM.
  2. In-depth investigation: if it's a real threat, a root cause investigation is carried out: identification of the attack vector, the affected perimeter and the malicious actions observed.
  3. Remediation and containment: we isolate affected systems, block suspicious connections, remove malware and support your in-house teams in restoration.
    Each confirmed alert is then the subject of a documented report, including actions taken and recommendations to prevent the risk reappearing.

Is the SOC IT Systèmes really operated in France?

Yes, entirely.
Our SOC is operated from our centers located in France, and our supervision infrastructures are hosted on French territory.
No logging, alert or correlation data is transferred outside the European Union.
This approach guarantees the sovereignty, confidentiality and regulatory compliance of the data processed.
This is a major differentiating factor: many managed SOCs on the market are operated abroad or rely on offshore subcontractors - at IT Systèmes, all analysis remains French and controlled.

What is the level of integration with our existing environment?

The SOC IT Systèmes integrates seamlessly into your existing ecosystem.
We connect your security tools, firewalls, servers, Microsoft 365 and Azure environments, EDR/XDR solutions and network equipment to the SIEM for complete visibility.
This integration is gradual and transparent: no sudden replacements, no service interruptions.
We work directly with your in-house teams and service providers to build a monitoring system tailored to your organization and operational constraints.

What regulatory obligations does a SOC help to cover?

The SOC contributes directly to compliance with numerous regulatory frameworks:

  • RGPD: traceability of access, detection of security incidents and reporting in the event of data leakage.
  • ISO 27001: continuous monitoring and improvement of security systems.
  • NIS2: obligation for vital operators and essential entities to detect and respond to incidents.
  • DORA: secure and operationally resilient financial systems.
    Our SOC reports and incident logs provide proof of compliance for audits and controls.

What are the concrete benefits of IT Systèmes' managed SOC?

The benefits are many and measurable:

  • Reduced detection time: threats are identified in real time, rather than over several days.
  • Reduced reaction time: our teams intervene immediately, limiting the operational and financial impact.
  • Global monitoring: workstations, servers, cloud, messaging and networks are all supervised from a central point.
  • Permanent human expertise: our analysts interpret weak signals and act before an alert becomes an incident.
  • Enhanced compliance: your regulatory obligations are covered and documented.
  • Increased visibility: you have access to dashboards, monthly reports and regular steering committees to manage your security posture.
    In short, the IT Systems SOC transforms your security from a reactive approach to a proactive, managed model, based on human expertise and continuous supervision.