Researchers analyzed more than 200 Android health apps aimed at helping people manage diabetes, such as apps that keep a log of blood glucose levels, or track all the foods you eat. And among the apps that did have privacy policies available pre-download, about half said that they shared user data with third parties. The researchers then downloaded 65 diabetes apps at random, and found that 76 percent of apps without privacy policies available pre-download, and 79 percent of apps with them, shared sensitive health information, such as users' insulin and blood glucose levels,with third parties.

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