EDR vs XDR: Attack Detection Simulator

Endpoint Detection & Response (EDR) and Extended Detection & Response (XDR) are two layers of the same defensive stack, and the difference between them is easiest to see by replaying one attack twice. In EDR mode this simulator shows a single laptop's local process tree: a suspicious process turns red the instant it spawns a shell or starts encrypting files, but that is the entire picture — no email, no other machines, no network context. In XDR mode the same attack is replayed across the whole environment: an email gateway, three endpoints, network traffic and a cloud/SaaS audit log all report their own signals, and a correlation engine draws a gold line joining every one of them into a single attack chain the moment enough evidence lines up — something no single EDR agent could ever assemble on its own.