There was a post recently about how someone was able to set up his own vpn which bypassed it. Something about the server padding out its response with garbage data?
Re:iOS 12 released
by teknologist on Tuesday September 18, 2018 @09:53AM
(#18015286)
You are still piping all of your traffic through one server. This would not look like a regular usage pattern by any means.
Both small packets and maxing out the window size in one stream. Lack of DNS queries from the host. Single connection dominating the bandwidth.
There's a reason for all of those of course, but put them together on a residential connection: almost certainly a VPN user.
And these are all really simple heuristics. In practice, we know you can identify which Netflix video are you watching just by the packet sizes/timing.