This document discusses privacy icons and attributes of privacy that are important for users to understand. It identifies 7 key things that matter most in privacy: whether a service shares user data with third parties, barters user data, shares data with government/law enforcement, protects user data, gives users control of their data, builds profiles for secondary use from user data, and uses ad networks and under what terms. The document debates challenges around creating standardized privacy icons that concisely represent these important privacy attributes to users in an understandable way.