{
  "port": 7438,
  "protocol": "tcp",
  "service": "Unassigned",
  "oneLiner": "The first port of IANA's unassigned 7438-7442 block — no registered service at all.",
  "whatItIs": "IANA marks 7438 through 7442 unassigned, and Nmap's database has no service name for it either, with an open-port frequency around 0.015%. There is no protocol to expect and no banner to recognise. Anything listening was configured by hand or picked by an application that wanted a free port above 1024.",
  "exposure": {
    "verdict": "careful",
    "note": "Judge the service, not the number: resolve the owning process first, since an unregistered port often hides an admin or debug interface someone assumed nobody would find."
  },
  "checkCommand": "nmap -Pn -sV -p 7438 TARGET",
  "links": [
    {
      "title": "IANA port registry — 7438 (unassigned)",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=7438",
      "kind": "iana"
    }
  ]
}