Shows
Cryptography FMEpisode 16: Contact Discovery in Mobile Messengers!Contact discovery is a core feature in popular mobile messaging apps such as WhatsApp, Signal and Telegram that lets users grant access to their address book in order to discover which of their contacts are on that messaging service. While contact discovery is critical for WhatsApp, Signal and Telegram to function properly, privacy concerns arise with the current methods and implementations of this feature, potentially resulting in the exposure of a range of sensitive information about users and their social circle.
Do we really need to rely on sharing every phone number on our phone in order...2021-05-2446 min