High security networks often use fiber optic cable.

Attacks on fiber optic cables are expensive, but are still posisile.

To get information from a fiber optic cable, the cable needs to be bended and in

doing $50$ the information carried out by the lightis corrupted.

As light is tran smitted instead of electricty, fiber opic netvorts are not

susceptible of wiretapping.

As the fiber optic is shield protected, there is no way to eavestroocong