One observation, and where it came from.
the installation ID is random bytes rather than anything derived from a key, and no key material left the host — there is nothing the fixed address could decrypt in exchange
This observation is part of a written scenario. It did not come off a real network, and nothing on this deployment did.
{
"kind": "security",
"detection_type": "installation_id_is_not_key_material",
"principal": "fs-04",
"source_address": null,
"asset": null,
"confidence": 0.97
}