Unfalsifiable claims make nothing true. There's nothing to be unsafe on a SBC because there's no channel to communicate with anything unseen because the ethernet interface is the only possible hardware for data-transmission to something else. And that's a public standard. Everybody can see the data going over it.
Just be honest. You're dancing to avoid confrontation with logic. "Everything is leaking" isn't reality. The inability to prove that something is secure doesn't make it insecure. That's the unfalsifiable claim.
Very often anonymous forum "info seekers" cant accept anything but confirmation of their own narrative...Sigh
