A major bug can make it possible to listen to a person called before taking it with Google Duo, Signal, FaceTime or even Facebook Messenger. It lasted until late 2020 for some applications.
During a call, when the reporter has not yet picked up,Signals on two mobiles exchange data to ensure connection. And it turns out that, during this phase, exchanges were not limited to encryption keys and codecs. The call also activated the party’s mobile microphone, which could allow it to be spied upon. Detected by security researcher Natalie Silvanovich At Google, this flaw not only affects the signal, but also almost all popular communication applications such as Facebook , FaceTime, Google Duo, or even JioChat which is widely used in India.
Fixed a big bug
AndAnd signals were the first to fix the defect in 2019, most of the others Did not take action until the end of 2020 to address it. Researcher considers this issue even more problematic Because, during this initial exchange, video packets could be transmitted in addition to sound. On the other hand, it Although common, neither worries Oo vibar.
In the explanation published in his account , The expert specifies that it has focused on applications representing more than 10 million installations from Google Play. This means that other less popular communication apps may still suffer from the same bug. In any case, it is better to check that this type of application is up to date on your phone.