Facebook switches users to HTTPS
You should consider HTTPS — which stands for Hypertext Transfer Protocol Secure, though you don't even really need to know that — one of your best friends. You should knot it a friendship bracelet, send it a holiday card, and thank it for keeping you safe on the big bad World Wide Web. Even Facebook realizes this and has decided to use it to protect every user's account.
As TechCrunch's Josh Constine points out, Facebook has begun transitioning its user base to HTTPS. This means that you will soon use a more secure version of the social network by default (rather than needing to toggle a setting manually).
Facebook's security policy manager Fred Wolens told Constine that moving to HTTPS may "slow down connections only slightly" as encrypted pages take longer to load, but adds that Facebook has "deployed significant performance enhancements to [its] load balancing infrastructure to mitigate most of the impact." Several other major services, such as Twitter and Gmail, have moved to using HTTPS already, which should be a fairly blatant sign that Facebook's on the right track.