In this situation that would leave you open to network analysis and location analysis, even if no payloads were decryptable.
Using enough data warehousing and artificial intelligence, eventually some algorithm would notice that every time some dude gets a phone call, next month the same boat gets a bill for servicing its water intakes, and a month later coke supply increases in .au decreasing the price. Might take a few times, but someone's getting caught.
The best part is if they go in shooting on a warrant and kill some random completely uninvolved people, it was all an algorithm's fault and nobody is to blame and I guess we just need more police involvement and surveillance to prevent future tragedies.
Using enough data warehousing and artificial intelligence, eventually some algorithm would notice that every time some dude gets a phone call, next month the same boat gets a bill for servicing its water intakes, and a month later coke supply increases in .au decreasing the price. Might take a few times, but someone's getting caught.
The best part is if they go in shooting on a warrant and kill some random completely uninvolved people, it was all an algorithm's fault and nobody is to blame and I guess we just need more police involvement and surveillance to prevent future tragedies.