VPN Virtual Private Network
An encrypted tunnel between your device and a server elsewhere — all your traffic goes through it.
Two main uses: corporate — employees access internal systems from home as if they were in the office. Private — hide your real IP, bypass geo-blocking, protect yourself on public Wi-Fi.
A VPN doesn't make you anonymous — it just shifts trust from your ISP to the VPN provider. Pick reputable ones: ProtonVPN, Mullvad, IVPN.