We contacted Opera for comment, and received this response from SurfEasy's Houston: "While the Opera VPN is completely free to the user, we do use anonymous market insights derived from customer usage to help support the service. We make this information available to third parties who are interested in better understanding the mobile ecosystem and how it's evolving."
In other words, it sells user data to marketers. Houston added, however, that the data is aggregated and not focused on individual activity. "It's important to understand that this is not data about what you do with your phone, but rather this is data about how a large group of people use their phones."
Source: Macworld AU
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