I think it's a fairly common trope in communication to explain in simple terms any language that the wider part of an audience doesn't understand.
replyIt's a term of art. In print media, the connotation is "vulnerabilities embedded into shipping software", as opposed to things like misconfigurations.
replyI though zero-day meant actively being exploited in the wild before a patch is available?
replyZero day means that there is zero days between a patch being available and the vulnerability being disclosed (as opposed to the patch being available before disclosure).
replyYes. As a security researcher this always annoys me.
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