The headline is false (“WhatsApp Backdoor allows Hackers to Intercept and Read Your Encrypted Messages”), in the sense that hackers can’t actually read and intercept WhatsApp messages. Normally the reporting of a security vulnerability includes a POC of an exploit. There isn’t one here, because hackers haven’t been able to exploit it. If an activist saw this story, got scared of WhatsApp, and decided to use SMS or Telegram instead (especially if they didn’t use the opt-in secret chats feature, which most people don’t), their security got weaker.
That doesn’t really refute the claim that this can be used as a backdoor, however. Since the backdoor is only usable by Whatsapp (or whoever controls them and their servers), a random researcher can’t really release a POC.
Disclaimer: I personally know nothing about beyond the posts in this thread.
