1. Public Wi-Fi is not as safe as it looks
Cafés, airports, hotels and trains almost universally offer free Wi-Fi, and most of it is unencrypted or shared with everyone else on the network. On an open or poorly secured network, other users on the same Wi-Fi can, with the right tools, potentially intercept unencrypted traffic — a risk security researchers have documented for years around public hotspots. Most everyday browsing today runs over HTTPS, which already encrypts the content of a given connection, so a VPN is not the only thing standing between you and a snooping stranger on public Wi-Fi. What a VPN adds on top is encrypting all of your device’s traffic through a single tunnel, hiding which sites and services you’re connecting to from anyone else on that local network, including the network operator itself. For anyone who regularly logs into banking, work systems or email on public networks, that’s a meaningful extra layer.
2. Your ISP can see — and in some countries, sell — your browsing activity
Without a VPN, your internet service provider can see which domains and services you connect to, even when the content itself is encrypted by HTTPS. What your ISP is allowed to do with that information depends heavily on where you live. In the United States, for example, Congress voted in 2017 to repeal FCC rules that would have required broadband providers to get opt-in consent before selling browsing data to advertisers — leaving US ISPs with considerably more latitude than providers in the UK or EU, where data protection law (UK GDPR, the EU GDPR) puts much stricter limits on what any company can do with personal data, including browsing history. A VPN routes your traffic through an encrypted tunnel to the VPN provider’s own server, which means your ISP sees only that you’re connected to a VPN — not which individual sites you’re visiting. That shifts the trust question from “what can my ISP do with this data” to “what does my VPN provider do with this data” — which is exactly why a provider’s no-logs policy and independent audits matter. See our No-Logs / Privacy-Focused VPNs category for how to evaluate that.
3. Streaming catalogues and prices both vary by region
Streaming services license content on a country-by-country basis, so the same subscription can unlock a noticeably different catalogue depending on where you appear to be connecting from. Plenty of travellers use a VPN simply to keep reaching the home-region catalogue on a service they already pay for while abroad. Separately, some retail, travel and software sites use dynamic or location-based pricing — a documented practice where the price shown can shift based on your detected location or browsing history. A VPN lets you check whether a price looks different from another region’s vantage point, though there’s no guarantee of a saving, and some checkout flows explicitly block VPN traffic. See Streaming-Optimised VPNs for providers built around this specific use case, with the honest caveat that no provider can permanently guarantee access — streaming platforms actively detect and block known VPN IP ranges on an ongoing basis.
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