> A few blips along the way will happen It is not a few blips. They have consistently shown to be unable to implement any kind of effective cryptography. Take

> A few blips along the way will happen It is not a few blips. They have consistently shown to be unable to implement any kind of effective cryptography. Take this case as an example. They seem to have tried to prevent such kind of attack by encrypting the data on the SD Card with a static key. How hard would it have been to generate a random key and save the key on the internal storage? An other example is the transport, i.e. client-to-server encryption. Even their new protocol looks like it has been hacked up by someone who learned his/her cryptography by 5 hour wikipedia reading: https://blog.thijsalkema.de/blog/2013/10/08/piercing-through-whatsapp-s-encryption/ https://blog.thijsalkema.de/blog/2013/10/08/piercing-through... . You would think that for a market value of 19x10^9 dollar you could afford to hire a single cryptographer or IT security specialist. Especially after you have been criticized for your bad security for years. > If you want security, there are apps for that. Good luck getting your friends to use it. We are not even talking about difficult usability decisions here where strong end-to-end encryption has to be visible in the user interface to allow fingerprint checking. This is about the most fundamental security measures, like if you connect to your server use TLS (and check the certificate) or if you encrypt something don't use the same key everywhere.