That sounds like it would be a big win for law enforcement. If you can force your opponent to avoid some modern ways to communicate, you can put a big dent in their efficiency.
It's possible that paranoia might lead to criminals avoiding even technology that they could be using safely, further slowing them down.
An old fashioned system also seems like it would require more people, opening up more opportunities for human intelligence operations targeting the network.
It's possible that paranoia might lead to criminals avoiding even technology that they could be using safely, further slowing them down.
An old fashioned system also seems like it would require more people, opening up more opportunities for human intelligence operations targeting the network.