Extended Detection and Response: a security approach that combines data from endpoints, networks, email, cloud, and identity to detect and stop threats.
Attackers rarely stay in one place. An intrusion might start with a phishing email, move to a laptop, then reach cloud accounts. Traditional tools each see only part of this story. XDR collects and correlates telemetry across multiple security layers, so analysts can see a complete attack chain in one view.
XDR evolved from endpoint detection and response (EDR), which focuses on individual devices. By linking signals, XDR aims to reduce false positives, speed up investigations, and automate responses such as isolating a device or disabling a compromised account. Offerings vary: some are tied to a single vendor's products, while open XDR approaches integrate tools from multiple vendors. XDR is commonly used by security operations centers.
Security software, known as EDR, that continuously monitors computers and servers to detect, investigate, and stop threats.
Endpoint SecurityProtecting devices such as laptops, phones, and servers that connect to a network from malware, exploitation, and misuse.
Incident ResponseAn organization's structured process for detecting, containing, investigating, and recovering from security incidents.
Security Operations CenterA team and facility that monitors an organization's systems around the clock to detect, analyze, and respond to cybersecurity threats.
What a SOC does, the roles and tiers inside one, the tools it relies on and how to choose between building in-house, outsourcing to MDR or a hybrid model.
EDR and XDR are tools. MDR is a team. Here's one clear chart showing what each covers, who runs it and which one a small or mid-sized business actually needs.
MSSPs manage your security tools. MDR providers hunt and contain threats. Compare scope, who responds, pricing models and the questions to ask before you sign.