TECH

Facebook can access your data even if you do not have an account on the network
Data security on the internet is a subject that has come to the fore among the means of technology. Much of this is due to the recent case where Facebook is accused of leaking data from 50 billion social network users. To avoid having your data monitored, simply do not have an account or delete your account from the network?The immediate answer is: no. This happens because of a product called Facebook Audience Network, or "Facebook audience network", in literal translation. This tool joins advertising and audience analysis of the social network on a single platform. This allows developers to use the product to not only publish their campaigns but have access to user data.That way, even if you're no longer on the network, your actions are still monitored by partner apps on this network. The function of Facebook is to analyze the data and return communication strategies to the developers. In exchange, when the user provides permission to share data with the app, this information is also provided to Facebook.
This is explicitly written in Facebook's privacy policies: "Information from websites and apps that use our service: We collect information when you visit a third-party site or app that uses our service (that is, when it offers our Like or Log button in via Facebook or use some of our tracking and advertising services). This includes information about the sites and apps you visit, your use of our services or those sites or apps, as well as information that developers and publishers of websites or apps offer to you or to us. "Adguard has done a recent research to understand how this information is transferred within this logic. The site reviewed, based on an automated platform, the top Google Play apps, installing on a device and analyzing traffic and code. In all, 2,556 apps were downloaded for the study.With this, the group found that 88% of apps connect to third-party servers and 41% use the Facebook Audience Network service. One of the most alarming data is that no application has left explicit or asked the user permission on the path that this information could go through.
The team also discovered that it is not just Facebook that uses this method to acquire user information. In the analysis, Google services like Crashlytics and Double Click, similar to Facebook Audience Network, appeared in 65% of the apps. However, it is important to keep in mind that this study was only done on Google Play, without considering other application stores and web services.
The third largest company pointed to in the survey is Yahoo, with 11% data usage. Still appear in the list Twitter (4%) and Alibaba (3%). If you have an adblock installed on your phone, by banning the graph.facebook.com domain, your information will no longer be shared, at least with the Facebook Audience Network.

Source: AdGuard