With the Snoopers Charter coming soon in the UK (ISPs will retain at least all browsing history by law), I intend to start using a VPN service. Disregarding issues of the VPN logging user details or leaving my IP address discoverable, what other potential personal information leaks should I be aware of?
For instance, websites track me by logging my machine ID. What would using a VPN do to protect against, say Google matching my machine ID when not using the VPN (they have this ID now) with my VPN-enabled sessions? Or would it be the machine ID of the VPN server that is collected?
Can I guard against tracking via my browser’s signature?
If I don't use the VPN before and during all online activity, can I be matched and identified using browser persistent storage? Would I have to track down and eliminate all persistent storage and cookies before the first time I use the VPN?
Is P2P secured? Is Usenet secured?
Should I quit the VPN before signing in to webmail or any other subscribed website?
I assume I will have to kill my Windows logon and switch to a local-only account. My browsers have Ghostery and Adblock Plus.
Currently my ISP uses IPV4 and dynamic IP allocation. I won't use TOR - it is way too slow.