For all the hand-wringing over the amount of data Google and Facebook have on us, the ISPs through which we connect to the internet have much more. VPN services are often cited as a way to preserve your privacy online, and many claim to keep no logs that could potentially unmask users. PureVPN is one such provider, but those non-existent logs apparently helped the FBI track down an internet stalker. That really raises some questions about the claims made by VPN providers.
Source: Supposedly Non-Existent VPN Logs Help FBI Catch Internet Stalker – ExtremeTech