Should I suggest to my friends to stop using all messaging apps, except Signal?
Andrea Fortuna
41

I swear I did not know anything!

“WhatsApp has implemented a backdoor into the Signal protocol, giving itself the ability to force the generation of new encryption keys for offline users and to make the sender re-encrypt messages with new keys and send them again for any messages that have not been marked as delivered. The recipient is not made aware of this change in encryption.”

(from http://thehackernews.com/2017/01/whatsapp-encryption-backdoor.html)