> Would be nice to have separate data lines, running fiber optics sealed in pressurized conduits for double tamper detection.
At least German Telekom has been doing this for ages for the trunk cables serving entire areas with analog phone service - although not for tamper detection as an anti-spionage measure, but rather to detect and pinpoint damage to the cables, e.g. from excavators, tree growth or splice seals degrading.
At least German Telekom has been doing this for ages for the trunk cables serving entire areas with analog phone service - although not for tamper detection as an anti-spionage measure, but rather to detect and pinpoint damage to the cables, e.g. from excavators, tree growth or splice seals degrading.