{
  "port": 4002,
  "protocol": "tcp",
  "service": "pxc-spvr-ft (registered)",
  "oneLiner": "An IANA registration with no assignee on record and no public documentation — in practice, a spillover dev port next to 4000 and 4001.",
  "whatItIs": "IANA registers 4002 as pxc-spvr-ft, part of a small block (4002–4007: pxc-spvr-ft, pxc-splr-ft, pxc-roid, pxc-pin, pxc-spvr, pxc-splr) whose registry rows carry no assignee and no reference. No specification or vendor documentation for the pxc services is publicly available. What you actually find on 4002 is usually a second local service that took the next free port after 4000 or 4001 — a dev server, an API stub, a container's second port mapping.",
  "exposure": {
    "verdict": "careful",
    "note": "Nothing meaningful is registered here in practice, so a public 4002 is an unidentified service — find the process first; if it is a dev server or debug endpoint, it should not be listening publicly at all."
  },
  "checkCommand": "sudo lsof -nP -iTCP:4002 -sTCP:LISTEN",
  "links": [
    {
      "title": "IANA port registry — 4002 (pxc-spvr-ft)",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=4002",
      "kind": "iana"
    }
  ],
  "ianaName": "pxc-spvr-ft"
}