Iwata says Nintendo will "offer advantages" to those who use their ID across devices.
The communications services get two-step verification, aimed at preventing unauthorized access to accounts, even if the username and password are entered.
The company has been slowly removing Google and Facebook log-ins from its site, and Flickr is next on the list.
After 24 hours of trouble with its subscription plan, including people being locked out of software, Adobe says it's fixing it.
If you get nervous using your Facebook log-in to sign into apps and websites, two new features will let you limit the personal information you share. CNET.com's Kara Tsuboi explains how they'll work.
At Facebook's F8 developer conference in San Francisco, CEO Mark Zuckerberg announces new privacy features for logging in to developer apps, including the ability to log in anonymously.
Using a Microsoft account to log in to Windows 8.1 offers some advantages over using local accounts. If those advantages don't appeal to you, you can switch back to a local account.
The fingerprint scanner on the Galaxy S6 and S6 Edge can do more than just unlock your phone.
Microsoft and Facebook are making APIs available to Windows 8 and Windows Phone 8 developers that allow them to integrate Facebook log-ins into their apps.
A new report suggests that fewer people are choosing to log in with Facebook.