Microsoft has been working on its Windows 10 Mobile Authenticator and users can take a sneak peek at the new beta version. Once final it will include support for push notifications and Windows Hello.
Facebook has stated that it will send notifications to users if it has reason to believe that an account has been targeted, but the proposed solution ultimately depends on the user.
A few screenshots of Microsoft Account settings have leaked that indicate the presence of two-step authentication, while an Authenticator app is already available in the Windows Phone Store
Barclays is to use two-factor authentication for the first time in an effort to prevent fraudsters plundering bank accounts. The bank's PINsentry devices will be sent free to half a million customers later this year...