{
  "port": 5087,
  "protocol": "tcp",
  "service": "BIOTIC",
  "oneLiner": "Registered to BIOTIC, a binary IoT messaging protocol — rarely seen on real networks.",
  "whatItIs": "IANA assigns 5087/tcp to biotic, \"Binary Internet of Things Interoperable Communication\", a protocol proposal from Peter Waher aimed at resource-constrained IoT devices that combines request/response, publish/subscribe, and peer-to-peer patterns in one binary encoding. The UDP side of 5087 is Reserved. Deployment is minimal, so a listener on this port is much more likely to be an unrelated application than a BIOTIC endpoint.",
  "exposure": {
    "verdict": "careful",
    "note": "Identify the actual service before opening it; the registration alone says nothing about whether what is listening authenticates or encrypts."
  },
  "checkCommand": "sudo lsof -nP -iTCP:5087 -sTCP:LISTEN",
  "links": [
    {
      "title": "BIOTIC — executive summary (Neuro Foundation)",
      "url": "https://neuro-foundation.io/Papers/Biotic%20-%20Executive%20Summary.pdf",
      "kind": "spec"
    },
    {
      "title": "IANA port registry — 5087 (biotic)",
      "url": "https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml?search=5087",
      "kind": "iana"
    }
  ]
}