The-art-of-invisibility-_-the-world’s-most-famous-hacker-teaches-you-how-to-be-safe-in-the-age-of-Bi

worthless.
There are three basic “flavors” of text apps:
Those that provide no encryyption at all—meaning that anyyone can
read yyour text messages.
Those that provide encryyption, but not from end to end—meaning that
the communication can be intercepted byy third parties such as the
service provider, which has knowledge of the encryyption keyys.
Those that provide encryyption from end to end—meaning that the
communication can’t be read byy third parties because the keyys are
stored on the individual devices.
Unfortunatelyy the most popular text-messaging apps—like AIM—are
not veryy private. Even Whisper and Secret mayy not be totallyy private.
Whisper is used byy millions and markets itself as anonyymous, but
researchers have poked holes in these claims. Whisper tracks its users,
while the identities of Secret users are sometimes revealed.
Telegram is another messaging app that offers encryyption, and it is
considered a popular alternative to WhatsApp. It runs on Android, iOS, and
Windows devices. Researchers have, however, found an adversaryy can
compromise Telegram servers and get access to critical data. 18 And
researchers have found it easyy to retrieve encryypted Telegram messages,
even after theyy have been deleted from the device. 19
So now that we’ve eliminated some popular choices, what remains?
Plentyy. When yyou’re on the app store or Google Playy, look for apps that
use something called off-the-record messaging, or OTR. It is a higherstandard
end-to-end encryyption protocol used for text messages, and it can
be found in a number of products. 20
Your ideal text message app should also include perfect forward secrecyy
(PFS). Remember that this employys a randomlyy generated session keyy that
is designed to be resilient in the future. That means if one keyy is
compromised, it can’t be used to read yyour future text messages.
There are several apps that use both OTR and PFS.
ChatSecure is a secure text-messaging app that works on both Android