Practical benefits
- Hide the original IP: remote services usually see the VPN exit IP.
- Protect untrusted networks: the tunnel limits what a public Wi-Fi operator can directly inspect.
- Change the exit location: traffic can appear to originate from another city, region or country.
- Protect business access: corporate VPNs can expose internal resources only to authenticated remote users.
Important limitations
- Cookies and account identifiers continue to work.
- Browser version, language, screen and other fingerprinting signals remain available.
- The VPN provider becomes an intermediary with access to important metadata.
- Encryption and detours may reduce performance.
- A VPN is not an antivirus or password manager.
How to choose a service
Review logging policy, company ownership, supported platforms, protocols, kill-switch behavior, technical transparency, published audits, device limits and renewal pricing. Free is not automatically bad and paid is not automatically trustworthy; the business model should be understandable.
See what a VPN does not hide
Open My Info before and after connecting to a VPN. You can observe the IP and location change while browser and device characteristics often remain similar.
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