Travel eSIMs make it simple to land in a new country, scan a QR code, and get online in minutes. No more hunting for SIM cards at the airport or swapping tiny plastic chips in and out of your phone.
Like anything connected to the internet, though, there are security risks to be aware of. You’re unlikely to be “hacked” just because you use an eSIM, but careless choices - like scanning a random QR code or using shady providers - can put your data and money at risk. With a bit of awareness, you can stay safe and still enjoy the convenience and value that eSIMs offer.
Can an eSIM Itself Be Hacked?
Modern eSIMs are built into your phone and use strong security, similar to physical SIM cards. Criminals don’t usually “break into” the eSIM chip. Instead, they target the steps around it: how you install it, the apps you use, and the networks you connect to while travelling.
For example, a fake eSIM QR code could send you to a malicious website, or a dodgy app could trick you into sharing personal details. So the real risk is less about the eSIM technology and more about where you get it and how you use it.
Choose Reputable eSIM Providers and Avoid Untrusted QR Codes
The easiest way to stay safe is to be picky about where your eSIM comes from. Avoid scanning QR codes from posters, random websites, or people you don’t know - especially in airports, cafés, or on social media. A QR code can look harmless but still send you to a fake site that tries to steal payment details or install malware.
Instead, buy from well-known eSIM brands or trusted marketplaces. Look for clear contact details, real reviews, and transparent pricing. We at RoamCompare make this easier by comparing over 40,000 eSIM plans from more than 20 reputable providers worldwide, with live prices, verified deals, and a transparent ranking engine that highlights the best-value options first.
Keep Your Phone Updated
Keep your phone’s operating system and apps up to date. Updates often fix security issues that hackers rely on. Before a trip, it’s a good idea to install any pending updates at home on a trusted Wi‑Fi network, so you’re protected from day one of your journey.
Stay Safe on Public Wi‑Fi and Consider a VPN
Your eSIM gives you mobile data, which is usually safer than public Wi‑Fi. Still, many travellers switch to Wi‑Fi in hotels, airports, and cafés to save data. That’s where risks increase: attackers on the same network can sometimes intercept unencrypted traffic or set up fake “free Wi‑Fi” hotspots to spy on users.
When possible, use your eSIM data instead of unknown Wi‑Fi, especially for banking, email, or anything sensitive. If you must use public Wi‑Fi, a reputable VPN adds an extra layer of protection by encrypting your connection, making it much harder for anyone nearby to see what you’re doing online.
Compare Plans for Value, Coverage, and Safety
Security isn’t the only thing that matters. You also want enough data, good coverage, and a fair price. Under-buying data can push you onto risky public Wi‑Fi, while overpaying can eat into your travel budget. A bit of planning helps you avoid both problems.
We at RoamCompare help you balance safety and value by comparing global eSIM plans side by side, with live prices, coverage details, and an intelligent data estimator that uses insights from thousands of travellers to suggest how much data you’re likely to need. You can also check if your phone is eSIM‑compatible with our compatibility checker and browse FAQs and guides tailored to first-time eSIM users.