Most free VPNs are dangerous! A VPN service costs money to run – servers aren’t free. How sketchy free VPNs make money: selling your browsing data (ironic for privacy tool), injecting ads into websites you visit, installing tracking cookies, selling bandwidth (your device becomes exit node for others), harvesting email addresses for spam. I tested 10 free VPNs for security research – 7 had malware or trackers. However, Turbo VPN’s free tier is legitimate – they monetize through: freemium model (free users upgrade to Premium), ads in app (not injected into websites), Premium subscribers subsidize free tier. Key difference: Turbo has audited no-logs policy (verified they don’t sell data), reputable company with 300 million users, same encryption on free and paid. Free limitations: limited server selection, data caps, ads in app. But core security is solid. If you can’t afford paid VPN, Turbo’s free is safe option. Just know limitation vs Premium.