For what its worth, Espressif chips are open source, but yes, I wouldn't run national security or government devices on these.

Edit: I take it back on OS comment, they are not OS but some components of the SDK are:

> Espressif chips are open source

No they're not? Anyway I assume GP was asking due to procurement concerns, not security.

	▲	chrisco255 4 hours ago \| parent [-]
		Corrected my comment, thank you. I mean, if productizing with them, global trade dynamics are certainly a supply chain risk factor, however, security concerns would be the primary reason such chips would be restricted from import.