Google’s physical authentication keys are effective but limited
Provided you only use Google's apps and services.
Nest adds two-factor authentication to protect your data
It'll text you a verification code every time you log into your account.
Twitch rolls out two-factor to reduce profile hijinks
Voluntary or not, you should totally add two-factor authentication to your Twitch account.
Two-factor system uses ambient sounds to verify your login
It listens to your surrounding and verifies if the device you're using to sign in and your two-factor device (such as your phone) are in the same place.
Twitter adds two-factor login verification via SMS (video)
Twitter just boosted its security with a new two-factor login method. The new option, which was an...
Guild Wars 2: Now with two-factor authentication
Security has kind of been a hot topic in Guild Wars 2. ArenaNet announced a couple weeks ago th...
ArenaNet talks security in Guild Wars 2
Account security has been a hot topic in the world of Guild Wars 2 between the hubbub about the...