Re:FBI Recovers WhatsApp, Signal Data Stored on Michael Cohe...
by Jarwain on Saturday June 16, 2018 @11:26AM
(#17327750)
Based on the article it seems like the messages were recovered from the local copy stored in the device. Arguably (at least, this is my understanding of OWS's stance on the issue) Signal only really claims to protect in-transit communications. Once the message reaches the recipient, it is up to that individual to secure the local copies of the messages. Signal does have an option to encrypt the local copies, but FDE is the ideal for that
I’m also interested in the answer to this question. From my layman’s understanding I see Signal as the most secure messaging solution out of the box, followed by WhatsApp but only if (and it’s a very big if) you don’t plan to do something that might raise the interest of a US 3-letter agency (i.e. you can use WhatsApp for random political corruption cases in European countries, like the politicians from my country do, but it’s not safe to use it if you plan to actively cross the interests of those 3-letter agencies). Telegram I also see as compromised by the Russian secret services, ignoring all the recent public brouhaha.
If anyone more knowledgeable has other views on this please feel free to correct me.