After being tested in beta on Android, WhatsApp is rolling out 2-factor verification worldwide on both Android and iOS now, via a server-side update. Because WhatsApp is phone number-based, the way this works is different from other two-step processes for securing accounts.
While it is different, it’s a neat process for securing an account. If logged in to WhatsApp, in Settings there is an option saying ‘Two-step verification.’ Turning this on will prompt the app to ask for a six digit passcode that is used whenever registering your phone number with WhatsApp.
After a few months in beta, WhatsApp’s two-step verification is rolling out worldwide was written by the awesome team at Android Police.