Facebook is pushing out a free VPN service through its iOS app, and the headlines have been brutal, as we found in a Google search:
An Extreme Tech article puts it like this:
"Unlike a typical VPN, Onavo Protect (from a company Facebook purchased in 2013) explicitly gives itself permission to mine your data. Buried underneath the “Read More” link, you’ll find the following:
As part of this process, Onavo collects your mobile data traffic. This helps us improve and operate the Onavo service by analyzing your use of websites, apps and data. Because we’re part of Facebook, we also use this info to improve Facebook products and services, gain insights into the products and services people value, and build better experiences."
So this VPN may tunnel your data, alright—all the way to Facebook's data mining servers.