"If WhatsApp is asked by a government agency to disclose its messages, it can grant access by changing the keys."
The official answers from the directly interested companies followed: WhatsApp and his Facebook which has acquired the application.
Let's see what the companies said:
The Facebook responded to the issue, commenting that the defect essentially prevents messages from being lost during transport. Here is the complete statement:
More than one billion people use WhatsApp today because they are simple, fast, reliable and safe. At WhatsApp, we always believe that people's conversations must be safe and private. Last year, we gave all our users a better level of security by making every message, photo, video, files use end-to-end encryption by default.
To Signal protocol of the WhatsApp application, we have a setting "Show Security Alerts" (Show Security Notifications - as an option in Settings> Account> Security) that notifies you when a contact's security code has changed. We know that the most common reasons this happens is because someone has changed phone or reinstalled WhatsApp. This is because in many parts of the world, people often change devices and SIM cards. In these cases, we want to make sure that the messages are delivered and not lost during the transfer.
Η Guardian published a story this morning claiming that a deliberate decision in WhatsApp design that prevents millions of messages from being lost is a backdoor allowing governments to force WhatsApp to decipher streams. It is a lie.
Η WhatsApp has not been given to governments backdoor in its systems and fights against any request of the government to create one backdoor. The design decision that refers to the story Guardian prevents millions of messages from being lost and WhatsApp offers alerts that warn of potential security risks. THE WhatsApp has published a WhitePaper for encryption planning and there is transparency in the requests it asks the government to receive, publication of data on requests submitted by the government after they are published on Facebook Government Requests Report.