websiteMore accurate advertising is needed. It is not clear what type of data was sent, but the PI report also pointed out that the data transmitted included custom identifiers to help Facebook track the service network used by users when they opened Facebook on mobile devices.
The report builds on a similar PI survey conducted in December last year, when it was first discovered that several popular Android applications sent user data to Facebook without user consent and disclosure. The report also points out that this problem is the same on iOS and Android platforms. The Wall Street Journal reported last month that while Apple's privacy rules and protections are much stricter, when you use mobile applications, they will also be sent to Facebook.
"The problem is very serious, not only about privacy, but also about competition," PI said in its report. The data sent to Facebook by these apps usually includes sensitive information, such as when Muslim prayer apps are turned on or off. This may sound basic, but it's not. Because these data are unique identifiers (user's Google ad ID), it's easy to connect these data with personal data to describe and understand the details of someone's interests, identity, daily habits, and so on.
On Android, Facebook has long collected sensitive user data, such as contact logs, call logs, text messages and real-time location data, to inform its advertising positioning and improve its friends'suggestions. However, these practices have aroused strong protests from privacy advocates and users that Facebook is accumulating too much data about their personal lives and online and offline behavior. For this reason, Facebook began to try to use these popular applications, even smaller ones, to get user information more easily.
In this case, PI is emphasizing one of Facebook's long-standing indirect data collection strategies, which relies on third-party applications to automatically collect and send information about application usage to social networks without informing users about the arrangements.