Pay attention, this one's very very important: if you use linked.in, then you need to change your password, *right now*. And they you need to change the password on any accounts you have on any other online sites that use the same password, because it's just been made public, paired with your email address.

Some of these are mind-blowing. Security is a compromise between usability and safety, whch is why you get password requirements like "must contain mixed case and a number" of things like that, but most of these decrease usability without increasing safety.

"An involuntary state of mind which seems to result from a romantic attraction to another person combined with an overwhelming, obsessive need to have one's feelings reciprocated"

The design of street food culture.