6 hours ago Several questions have been raised about what WhatsApp can and cannot do, in an end-to-end encrypted messaging environment, after it filed a lawsuit against the Indian government over the IT Rules 2021 arguing that the rules are unconstitutional. People have raised questions about what issues WhatsApp might have in tagging messages with the identification information of a user when it collects metadata on users; suggested that it is only a minor modification to end-to-end encryption for it to add that tag; and questioned how WhatsApp tracks forwarded messages. MediaNama compiled a list of such questions (many of which users sent us via Twitter), and we’ve got them answered by independent security researcher Anand Venkatanarayanan: