Huh, I honestly didn't know it was that big. Forgive my ignorance, I've never really used Whatsapp. Can you send a message to someone that hasn't added you as a contact? If so I would seriously consider implementing this as an alternative to email.
The main problem is that it's not federated and completely under Facebook's control. Also, identity based on WhatsApp is still vulnerable to simjacking, correct?
> The main problem is that it's not federated and completely under Facebook's control. Also, identity based on WhatsApp is still vulnerable to simjacking, correct?
