personnel responsible

This phrase is compositional rather than a term of art. It is ordinary English — a noun ("personnel") followed by a participial phrase ("responsible for [some function or asset]") — used throughout information security, privacy, and compliance documents to point to whichever individuals or roles hold accountability for a named control, system, or program. Its referent shifts entirely with context: it can denote a CISO, a site manager, an ISSO, a compliance owner, or any other role the surrounding text places in an accountable position. No authority document gives it a fixed, bounded definition independent of that surrounding context.