BleepingComputer: Europol 'unlocks' encrypted Sky ECC chat service to make arres
ts.
[1]https://www.bleepingcomputer.com/news/security/europol-unlocks-encrypted-sky-
ecc-chat-service-to-make-arrests/

References

   1. https://www.bleepingcomputer.com/news/security/europol-unlocks-encrypted-sky-ecc-chat-service-to-make-arrests/