Free Wi-Fi in cafés — convenience or a trap for your data?

You walk into your favorite café in the city center, order a latte and automatically connect to the Coffee_Free_WiFi network.

Sounds familiar? But while you scroll through the news or check your work email, someone at the next table may be able to “see” your screen.

With over 8 years of experience in device configuration, we at SVC know: security starts not with complex software, but with the right habits.

Here are simple rules for using public Wi-Fi that will help you avoid unnecessary visits to a service center.

1. Why public Wi-Fi is dangerous

Open networks often lack proper encryption, which means your data can be intercepted without any hacking at all.

Evil Twin network — a scammer creates an access point with the same name as the café’s Wi-Fi. Your phone connects automatically, and all traffic goes through the attacker’s device.
Data sniffing — using special software, hackers can capture unencrypted passwords, card numbers, or private messages.
Man-in-the-Middle attack — the attacker positions themselves between you and the website, replacing real pages (for example, a bank login) with fake ones to steal your data.

Following a few simple rules significantly reduces risks even on public networks.

Always check for the padlock icon in the browser’s address bar.

If a website starts with http:// (without the “S”), never enter passwords or card details there.

https:// means the connection is encrypted, but in public Wi-Fi networks it does not provide 100% protection.

A VPN creates an encrypted tunnel for your data.

Even if traffic is intercepted, the attacker will only see random characters.

Tip from SVC: use trusted paid VPN services, as free VPNs often collect user data themselves.

Public Wi-Fi is not the place for:

For such actions, switch to mobile 4G/5G internet, which is much harder to compromise.

Disable automatic Wi-Fi connection in your smartphone settings
Remove all public networks from saved Wi-Fi lists (cafés, airports, train stations)
Enable two-factor authentication (2FA) for all important accounts

Free Wi-Fi is convenient, but unsafe without proper precautions.

A few simple habits can protect your data, your money, and your peace of mind.

Need help securing your office or home network?

The SVC team will help you build a secure infrastructure that cannot be “eavesdropped on.”

Call us: +38 (093) 66 44 339
Visit us: Rivne, D. Halytskoho St., 19