The Homeric Hymn to Hermes (c. 6th century BCE) has the infant god steal Apollo's cattle on his first day, invent the lyre, and lie about both with courtroom skill, the trickster dossier in primary text. Greek Hermes later merged with Egyptian Thoth into Hermes Trismegistus, the supposed author of the Corpus Hermeticum, treatises dated by modern scholarship (following Casaubon's 1614 redating) to the 2nd-3rd centuries CE, not deep Egyptian antiquity.
The name splits into two inheritances: hermetic as sealed (the airtight vessel of alchemy) and hermeneutic as interpretive (hermeneutics, the art of reading). Both descend from the same trickster, the god of thresholds who controls what crosses them, messages and seals alike.
Hermes' essence is the threshold itself: boundaries exist to be crossed by him and enforced for everyone else. As psychopomp he moves souls; as interpreter he moves meaning; as thief he moves property. Any system that moves information has already erected his altar.
If the messenger god is also the trickster, why do we trust any message?