EDR, or Endpoint Detection and Response, is a cybersecurity solution designed to monitor, detect and neutralise threats targeting a company’s devices, such as computers, servers and workstations. Unlike traditional antivirus software, EDR does more than simply block known viruses: it continuously analyses device behaviour in order to identify suspicious activity, even when dealing with new or previously unknown attacks.
For example, if a program suddenly starts encrypting a large number of files, attempts to access sensitive data or communicates with a malicious server, EDR can detect this abnormal behaviour. It can then generate an alert, automatically isolate the affected device from the rest of the network and provide IT teams with all the information they need to analyse and stop the attack.
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This capability is particularly important when dealing with modern cyber threats, such as ransomware, which evolve rapidly and can sometimes bypass traditional security measures. Thanks to continuous monitoring, EDR can identify an attack from its earliest signs, before it spreads across the entire IT environment.
EDR also keeps a detailed history of events on each endpoint. This traceability makes post-incident investigations easier, helps determine how the attack occurred and supports the implementation of measures designed to prevent it from happening again.
Today, EDR solutions are an essential component of business cybersecurity. Combined with a firewall, backups, multi-factor authentication (MFA) and employee awareness, they help strengthen endpoint protection and improve a company’s ability to detect and respond quickly to cyberattacks.