Introduction Data is the most valuable commodity of 21st century. It is being monetized by giants of IT industry. Most valuable resource nowadays, however, is targeted information. Every piece of information provided by user may be used to create his profile and then - to target him with right ads at right time. Issue You are a product. Your data is the new oil, and it's being collected, sold and used to target you. Data is being used to create profiles of you and others, control your behavior and manipulate your thinking. This can be done through sophisticated algorithms that sift through millions of pieces of information about people in order to predict behaviors with high accuracy (or even better than humans can). Data collection has evolved from something that happens on an individual level—like when you give up your personal information at checkout—to something much more pervasive: everything we do online is tracked by companies who then sell this information to advertisers who wa