In a world where cyber-attacks are constantly evolving,EDR, SIEM and SOC form an unbeatable team to protect your systems. Individually, each plays a key role, but together they create a strong and effective chain of defense.
EDR: the gatekeeper
EDR is like your front-line defense. Installed on devices (computers, servers), it monitors and blocks threats directly at their point of origin. If a suspicious file attempts to run, or an intrusion is detected, the EDR intervenes immediately and forwards its observations to the SIEM for further analysis.
Example: If malware attempts to run on a workstation, the EDR blocks the attack and isolates the device to prevent further propagation.
SIEM: The analytical brain
The SIEM acts as your cybersecurity headquarters. It collects and analyzes data from all your IT sources: servers, firewalls, EDRs, applications and so on. It’s a bit like the security console in a shopping mall, gathering images from all the cameras.
Example: If an employee attempts to access a sensitive file outside normal working hours, the SIEM identifies the anomaly, issues an alert and forwards the information to the SOC.
SOC: the strategic team
The SOC, made up of human experts and advanced tools, interprets the alerts issued by the SIEM and EDR to decide what action to take. It’s a bit like the command post that coordinates interventions in the field.
Example: When an alert indicates that an account has been compromised, the SOC reacts quickly: it resets passwords, updates systems and generates reports to reinforce defenses in the future.
An interconnected chain of defense
EDR, SIEM and SOC don’t work in silos. Together, they offer :
- Real-time detection: EDR stops threats before they spread.
- Contextual analysis: SIEM provides an overview of incidents to better understand their scope.
- Coordinated response: the SOC orchestrates a rapid, effective response based on the data collected.
It’s this collaboration that makes all the difference in the face of sophisticated cyber-attacks, enabling your company to react before damage is done.
Thought for the day
“EDR, SIEM and SOC are like a well-tuned orchestra: each plays its own part, and together they create the perfect harmony for your security.”