Misusing Other's Account

Description
This pattern is also know as "faceraping". It's when someone misuses an account belonging to a friend to post strange or maybe embarrasing things. It usually happens when someone has left their computer with Facebook or any other social media site open. It could also happen thanks to the keep me logged in feature.

Examples
Alice is sitting and studying with some friends in school, and then has to visit the bathroom. She forgets to lock her computer, and when she gets back someone has made a post on Facebook with her account.

Bob uses Facebook on a shared computer. When the next user of the computer goes to Facebook, he notices that Bob is still logged in (Keep me logged in feature), and posts something.

Pros and Cons
This is an unwanted pattern, and most sites have taken some measures to require a password for certain events, even though the user is logged in. Most commonly is that a password is required when changing the password, preventing a more permanent takeover.

Relations
.This usually occurs when users forget to Sign Out of the service. If a malicous user also gets a hold of the password, it could lead to Identity Theft.

Contributors
Created by Andreas Bjerkeholt from the discussions.