VPNs Are Everywhere — But What Do They Actually Do?
Scroll through YouTube for a few minutes and you'll inevitably see an ad for a VPN. They're marketed as the solution to every online privacy problem. The reality is more nuanced. VPNs are genuinely useful tools in certain situations — but they're not the privacy cure-all they're sometimes sold as.
How a VPN Works (Simply Explained)
Normally, when you visit a website, your request travels from your device to your Internet Service Provider (ISP), and then out to the website. Your ISP can see every website you visit, and the websites you visit can see your real IP address.
A VPN (Virtual Private Network) routes your traffic through an encrypted tunnel to a server operated by the VPN provider. From the outside, it looks like your traffic is coming from the VPN server's IP address, not yours.
This accomplishes two things:
- Your ISP can no longer see which websites you visit (only that you're connected to a VPN).
- Websites see the VPN server's IP address, not your real one.
When a VPN Is Actually Useful
- Public Wi-Fi: Coffee shops, airports, and hotels run open networks where other users could potentially intercept your traffic. A VPN encrypts your connection, making this much harder.
- Hiding activity from your ISP: ISPs in many countries can log and sell browsing data. A VPN prevents this.
- Accessing geo-restricted content: Streaming services offer different libraries in different countries. A VPN lets you appear to be in another region.
- Avoiding network-level censorship: In countries or networks that block certain websites, a VPN can bypass those restrictions.
What a VPN Does NOT Do
This is where the marketing often oversells the product:
- ❌ It does not make you anonymous. If you're logged into Google or Facebook, they still know who you are.
- ❌ It does not stop tracking cookies or browser fingerprinting. Advertisers have many ways to identify you beyond your IP address.
- ❌ It does not protect you from malware or phishing. Use antivirus software and good judgment for that.
- ❌ It does not hide your activity from the VPN provider itself. You're shifting trust from your ISP to the VPN company.
Choosing a VPN: What to Look For
If you decide a VPN is right for you, look for these qualities:
- No-logs policy: The provider should not store records of your activity — and ideally this policy has been independently audited.
- Open-source or audited software: Transparency about how the software works builds trust.
- Jurisdiction: Where the company is based affects what laws apply to your data.
- Reputable track record: Look for providers that have resisted law enforcement requests or proven their no-logs claims under scrutiny.
Free VPNs: A Word of Caution
Many free VPNs generate revenue by logging and selling user data — the very thing you're trying to avoid. Some have also been caught injecting ads or malware. If you're serious about privacy, a paid VPN from a trusted provider is worth the modest cost. Alternatively, consider Mullvad or ProtonVPN, which have strong privacy reputations.
The Bottom Line
A VPN is a useful privacy tool — not a magic shield. Use one when you're on public Wi-Fi, want to hide your browsing from your ISP, or need to access region-locked content. Combine it with other privacy practices like using a privacy-focused browser and blocking trackers for a more complete picture.