Have you ever purchased something online and then seen an ad for a related item in your social media feed? Do you ever wonder who, or what, is listening to your conversations when your intelligent assistant is waiting for your commands? You give away a significant amount of indirect information about yourself every day, whether you are online or think that you are offline. The online services you use often have the freedom to decrypt and view your emails, photos, contacts and documents. Something as innocuous as what you buy, or who you follow on social media, can be used by organizations and individuals to determine key facts about who you are and your personal habits. You don't even have to provide the information yourself - your family, friends and colleagues are sharing your information for you.