How to stay safe on public WiFi?

1 min read Updated

Set your devices up before you travel, then keep a short routine every time you connect. Most of the protection comes from settings, not from vigilance in the moment.

Before the trip

  • Update everything. Patch your phone, laptop and browser before you leave so you aren't fixing things on hotel Wi-Fi, where fake update prompts are a known trick.
  • Turn on two-factor authentication for email, banking and cloud accounts. The FTC points to strong passwords and 2FA as the main defense, since most sites already encrypt traffic.
  • Turn off auto-join. The NSA recommends disabling auto-connect and turning off file and printer sharing on laptops used on public networks.
  • Install a VPN and test it at home. A VPN such as NordVPN encrypts everything between your device and the VPN server, so the hotspot operator or anyone spoofing it sees only scrambled traffic.

Each time you connect

  1. Join the network staff name, finish the captive portal login, then switch the VPN on.
  2. Stick to sites and apps that load over HTTPS with no certificate warnings.
  3. Type addresses for your bank or email yourself instead of following links from the portal page.
  4. When you leave, forget the network so your device doesn't rejoin a copycat later.

A VPN won't stop you from typing a password into a phishing page or downloading malware, so the habits above still matter. For anything high stakes, like a large transfer, your phone's cellular data is the safer pipe.