An EDR only sees the endpoint. A SIEM only sees the logs. Very often, no one connects these scattered signals to one another. XDR (Extended Detection and Response) addresses this fragmentation of security tools. It aggregates data from multiple sources to give teams a comprehensive view of threats, rather than a series of isolated alerts. At Elit-Technologies, XDR is an integral part of our Managed Detection and Response (MDR) service: correlation technology, enhanced by AI, is operated by analysts at our ISO 27001-certified managed SOC, under continuous 24/7 monitoring.</
What exactly is XDR?
XDR is a cybersecurity approach that collects and correlates security data from multiple sources: endpoints, networks, cloud environments, and email. Unlike a tool focused on a single area, XDR builds a unified view of threats by cross-referencing these signals. This makes it possible to detect attacks that would remain undetected if each source were analyzed separately.
This approach does not replace existing security measures; rather, it ensures they are consistent with one another.
This correlation reflects a measurable shift in the threat landscape: ANSSI’s 2025 Cyber Threat Panorama (published in March 2026) identifies 196 data exfiltration incidents in 2025, compared to 130 in 2024—a 51% increase—involving stealthy attacks that penetrate multiple layers of the information system without triggering any isolated alerts. That same year, the agency handled 1,366 cybersecurity incidents, a level it describes as a “high plateau.”
These four approaches address different needs. Together, they form a continuous monitoring and security system.
| Solution | Scope of Coverage | Main Function | Limitations when used alone |
|---|---|---|---|
| EDR Endpoint Detection and Response | Workstations and Servers | Endpoint-level detection and response | Does not detect network, cloud, or email signals |
| SIEM Security Information and Event Management | Centralized Logs and Events | Log Collection and Aggregation | Generates a high volume of alerts, without advanced automatic correlation |
| MDR Managed Detection and Response | Varies depending on the scope covered | A monitoring service operated by a third party, often integrated with an EDR | Depends heavily on the tool’s detection scope |
| XDR Extended Detection and Response | Endpoint, network, cloud, email | Multi-source correlation and unified threat visibility | Requires expertise to fully leverage the correlations |
EDR and SIEM, when used on their own, remain robust and widely deployed tools. Extended Detection and Response does not render them obsolete, but rather integrates them to provide a comprehensive analysis of security incidents.
How does artificial intelligence play a role in XDR detection?
Within Elit-Technologies’ XDR platforms, AI plays a threefold role:
This automation does not replace human analysis; rather, it prepares and optimizes it. Security analysts retain the final say on each incident response.
At Elit-Technologies, this analytical capability is supported by our Elit Full Souverain offering: the ELIA platform (our artificial intelligence environment) and the ECP platform (our cloud environment management platform), both hosted in France, ensure complete visibility into your IT infrastructure without relying on offshore infrastructure. ” And spell “ELIA” (rather than “ELiA”).
Why implement XDR through a managed SOC rather than on your own?
An XDR deployed on its own remains just one technical tool among many. It only reaches its full potential when operated by analysts capable of interpreting its information and taking appropriate action. This is the approach adopted by Elit-Technologies: our XDR is not delivered on its own, but is managed by our managed SOC. Human expertise complements the technology to assess each alert and initiate the appropriate response.
This organization addresses two realities on the ground.
Dedicated Contact Person
Organizations without an in-house security team have a dedicated point of contact who provides clear and comprehensive support.
Continuous coverage
Teams with a CISO or CIO gain continuous coverage that strengthens their capabilities.
XDR’s multi-source integration prevents the creation of siloed tool stacks. This is a common challenge for security teams that juggle multiple consoles without a consolidated view. This approach is part of our managed cybersecurity services, of which XDR is one of the key technological pillars.
Frequently Asked Questions
What is the difference between EDR and XDR?
EDR (Endpoint Detection and Response) focuses on workstations and servers. It detects and responds to threats affecting these specific devices. XDR expands this scope by integrating signals from the network, the cloud, and email. It correlates all of these data sources and reveals attack patterns that an analysis limited to endpoints alone would not be able to detect.
EDR remains a relevant and widely deployed tool. XDR is based on the same detection and response approach, extended to the entire information system to provide a comprehensive view of threats.
XDR or SIEM: Which One Should You Choose?
SIEM (Security Information and Event Management) centralizes and aggregates event logs from multiple devices. It is therefore an essential tool for compliance and retrospective incident analysis. However, it generates a high volume of alerts without always providing in-depth correlation between the various sources.
XDR takes a complementary approach: it natively correlates signals from endpoints, the network, the cloud, and email. It prioritizes alerts for real-time detection and response. The two approaches are often combined within the same information system.
Can XDR be managed without an in-house security team?
Yes, an XDR solution can be fully operated in managed mode for organizations that do not have an in-house SOC team. At Elit-Technologies, the XDR platform is not delivered as a simple standalone tool. It is managed by cybersecurity analysts, who assess the alerts generated, interpret the correlations produced by the technology, and initiate the appropriate responses to detected incidents.
This approach allows a company without dedicated internal resources to benefit from continuous monitoring of its information system, with a dedicated point of contact who assists with the implementation and understanding of the system.
What is the difference between XDR and MDR?
XDR is a technology: a platform that correlates security signals from endpoints, the network, the cloud, and email to detect threats. MDR (Managed Detection and Response) is a service: a team of analysts that detects and responds to incidents on behalf of the company. The two complement each other: MDR can rely on XDR as its technological foundation. This is Elit-Technologies’ approach, where the XDR platform is managed by analysts in our managed SOC, who assess each alert and initiate the appropriate response.