Fits with the coincidental marketing of "USB condoms" which now seem like an extra good idea where charging is the goal. Makes me now wonder about the infectio

Fits with the coincidental marketing of "USB condoms" which now seem like an extra good idea where charging is the goal. Makes me now wonder about the infection potential of a lot of USB powered devices. I could imagine a lot of "dumb" devices incidentally using a vulnerable controller chip, even if the application of USB is purely for power. Maybe most USB powered devices have a safe / invulnerable way of sipping power? Anyone faniliar with USB power-only devices want to comment?