"Optical networks like you listed are pretty dumb so aren't nearly as much of a threat"
They can be tapped into still, of course. Doesn't GCHQ copy all the data coming through their fibre lines and run it through computers for analysis?
They can be tapped into still, of course. Doesn't GCHQ copy all the data coming through their fibre lines and run it through computers for analysis?
Slightly different threat model.