4 ms·

This has been a reality since at least 1971

• PaulHoule 2y ago
  If you're talking about this https://en.wikipedia.org/wiki/Operation_Ivy_Bells https://en.wikipedia.org/wiki/Operation_Ivy_Bells they didn't cut the cable but wrapped something around it that got a signal by induction. Works in an electrical cable because the different wires are deliberately wound at varying pitches to minimize crosstalk, but you gotta cut to get into an optic fiber cable. It was a brilliant piece of signals intelligence that was countered by human intelligence, the device is in a museum, one of many in Russia that I'd like to go to but never will.