I went on vacation to Paris. I was sitting in a café, sipping overpriced coffee and pairing it with a croissant. My laptop was open, my phone was uploading photos to the cloud, and I was checking my balance to see if I could afford that vintage leather jacket I'd spotted earlier.
What I didn't know was that someone three tables away was watching every keystroke.
Not with their eyes but with their computer. By the time I closed my laptop 20 minutes later, they had my email password, a copy of my passport scan, and enough information to make a decent attempt at accessing my services.
I only found out two weeks later when fraudulent charges started appearing. The coffee was €4.50.
I had learnt a major lesson.
Don't let this be you.
What Public Wi-Fi Really Means
Public Wi-Fi is any wireless network that's openly accessible without a unique, personal password. If that same password is shared with everyone who asks, it's public Wi-Fi.
For travellers, these networks are lifelines. They're how we video call home, navigate unfamiliar streets, book our next accommodations, and yes—manage our finances and work emails from 5,000 miles away from our secure home networks.
But guess what? Public Wi-Fis are also hunting grounds for unsuspecting people.
How attackers access travellers' private data
1. Fake hotspot attacks Anyone with a laptop and basic tech knowledge can create a fake Wi-Fi hotspot with a convincing name: "Airport Free WiFi", "Hotel Guest Network", "Coffeeshop Internet".
These "evil twin" networks are perfect replicas designed to trick you into connecting. Once you do, the attacker becomes the middleman for everything you send or receive. Every website you visit, every password you enter, every file you download.
2. Eavesdropping on your traffic Using freely available software called "packet sniffers," someone on the same network can intercept and read the data packets flowing between your device and the internet.
3. The Invisible Interceptor This is when an attacker secretly inserts themselves between you and the website or service you're communicating with, silently reading and sometimes altering everything that passes between you without either side knowing they're there.
4. Session hijacking Many websites use "session cookies" to keep you logged in. These are like digital ID badges that say "this person has already entered their password." On unsecured public Wi-Fi, attackers can steal these cookies through session hijacking.
Once they have your session cookie, they can impersonate you on that website without ever knowing your password. They are you, as far as the website is concerned.
5. Malware injections Unsecured networks can allow malicious actors to quietly install malware onto your devices, gaining prolonged access to your camera, microphone, keystrokes, and stored documents.
The Solution: The eSIM Advantage
Instead of hunting for unsecured cafe and airport networks, modern travellers use Getly eSIM.
With an eSIM installed directly onto your smartphone before you travel: - You connect directly to certified cellular carrier towers in 150+ countries. - Cellular data is encrypted at the protocol layer, bypassing local Wi-Fi sniffers entirely. - Your internet starts working the second the plane touches the runway. - No SIM ejector pins, no physical plastic cards, and zero airport kiosk queues.
Stay secure, stay fast, and keep your data private wherever your journey takes you.
