XDR stands for Extended Detection and Response. In short, it’s a practice utilizing artificial intelligence and advanced tools to collect and automatically correlate data across multiple security layers, allowing for faster detection, investigation, analysis of, and response to security threats.
Though you may have multiple security layers in place, such as a firewall, anti-virus, MFA, etc., each exist and operate independently of one another. This means that if an attack is levied across multiple vectors, it would require human interaction to recognize that activity, investigate its source, and shut it down. Depending on the sophistication of the attack, the situation can become a high-tech game of “Whack-a-Mole.”