6 Rules for Staying Safe on Public Wi-Fi

 TRY THIS NOW Quick action: Turn off the "auto-join" or "connect automatically" option for open networks in your Wi-Fi settings.

Free Wi-Fi in cafés, airports, and hotels is genuinely convenient. The trouble is, you rarely know who set up the network  or who else is on it. You don't need to avoid public Wi-Fi completely. You just need a few ground rules.

Here are six worth following.

1. Confirm the network name before connecting

Attackers sometimes create fake networks with convincing names like "Coffee_Shop_Free" to catch automatic connections. Ask the staff for the exact network name, and be suspicious of lookalike spellings. When in doubt, don't connect.

2. Keep sensitive tasks on mobile data

Check your bank account, pay bills, or type card details on mobile data instead. It's a small amount of data to spend for a lot of extra safety. Save the public Wi-Fi for casual browsing, maps, and messages.

3. Look for the lock icon

Most modern websites use encryption, shown by a padlock symbol and an address starting with https. If your browser warns you that a connection isn't private or a certificate has problems, take it seriously and leave the site.

4. Turn off auto-join and sharing features

Phones love to reconnect to networks they've met before — including fake ones copying the same name. Disable auto-join for open networks, and turn off AirDrop, Nearby Share, and file sharing in public. These are easy targets.

5. Keep your device updated

Software updates often patch the exact weaknesses that attackers look for on shared networks. An outdated phone or laptop on public Wi-Fi is a much easier target than an updated one. Let updates install when they arrive.

6. Forget the network when you leave

When you're done, tell your device to forget the network. It prevents silent reconnections the next time you walk past, and it stops similar-looking fake networks from matching the saved name. Ten seconds of effort, real protection.

Public Wi-Fi isn't the enemy — carelessness is. Rule number two alone protects your most important accounts, so start there and build the rest as habits.

Trusted resources

· CISA: Secure Our World — Protect Your Personal Devices

· Electronic Frontier Foundation: Surveillance Self-Defense

Helpful reminder: Menus and features can vary by device, software version, country, and service provider. Use the official support page for your own product when steps differ.