Mobile ad networks are using new techniques to track users after Apple's efforts to protect user privacy, The Wall Street Journal reports." After Apple said last summer it would stop allowing apps to track iPhone and iPad users as they moved from one app to another, ad networks started using a different identifier to continue tracking user details such as location and preferences. The Federal Trade Commission recently urged Congress to create regulations on the matter. Stanford researcher Jonathan Mayer says the situation is "emblematic of a culture problem in Silicon Valley that sees privacy control not as a customer protection but a technical barrier to be overcome." (Registration may be required to access this story.)
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