The term XDR, for extended detection and response, has been bandied about for almost half a decade. I believe I was the first analyst to use it when I authored this post in 2018. When I wrote the post, I had a very specific definition in mind, but like most things in tech, once a term starts to gain traction, more and more vendors bend the definition to meet their needs.

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What’s XDR? Five answers to key questions about extended detection and response