From Facebook blog:
At Facebook, we’re constantly working on new ways to protect you from scams and help you keep your account and information secure. Today, we’re announcing some new tools and systems designed to keep the bad guys out and keep you abreast of suspicious activity so you can quickly take action to correct it.
We’ve always devoted significant time and effort to security. We’ve built technical systems that operate behind the scenes to quickly detect and block suspicious behavior, delete phony posts and messages, and return compromised accounts to… their rightful owners. Most of these systems are invisible to the average person who uses Facebook. Very few people will ever experience a security issue on Facebook, which means that most of you have probably never noticed these systems at work. Rest assured that these systems are there, though, protecting you and your friends.
Login Notifications
Over the last few weeks, we’ve been testing a new feature that allows you to approve the devices you commonly use to log in and then to be notified whenever your account is accessed from a device you haven’t approved. This feature is now available to everyone.
To try it out, go to the Account Settings page and click on the link next to “Account Security” at the bottom of the page. If you select the option to receive notifications for logins from new devices, when you log in, you’ll be asked to name and save the various devices you use to access Facebook.
Please, let me try to understand this. Facebook adds the ability for users to login only from approved devices, very similar to the way banks allow their users to login. However, Facebook does not make this the default behavior? So when it comes to them getting money from their tracking of our info, they automatically turn that stuff on, but when it comes to our protection, it’s optional? Oh yeah… they are totally concerned with the privacy and security of our info on their site!