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Is cellular data more secure than public Wi-Fi in 2025?

21.01.2025
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With the rise of connected spaces, from coffee shops to airports, many of us rely on public Wi-Fi to stay online. But in 2025, is it still a safer bet to use cellular data over these easily accessible networks? Let’s break down what’s changed with public Wi-Fi and why cellular data remains a top choice for security-conscious users.

Wi-Fi security gets a boost

Historically, public Wi-Fi was notorious for its open-door approach, leaving user data more vulnerable to prying eyes. However recent years have seen many businesses implementing closed networks that require passwords and use encryption protocols to protect data in transit. This shift in public Wi-Fi protocols, along with growing support for secure websites (thanks to the FTC’s push for site encryption), has certainly improved Wi-Fi security. However, while these protections have added a layer of defence, they’re not enough to make public Wi-Fi as secure as cellular data.

Why cellular data remains more secure

Even with these Wi-Fi advancements, cellular data still comes out ahead in security for a few key reasons. Cellular networks are structured differently from Wi-Fi networks; they rely on carrier infrastructure, including cell towers and encryption technologies that continuously refresh without requiring the user to log in or adjust settings. This setup means cellular data networks are less susceptible to interference and harder to exploit by cybercriminals. Additionally, since mobile data doesn’t require a publicly accessible password, there’s a reduced risk of unauthorised access that often accompanies shared Wi-Fi networks.

When you access sensitive information on cellular data, the likelihood of interception is significantly lower than on public Wi-Fi. This is because public Wi-Fi networks, even those protected by passwords, are often set up with easy-to-guess codes (like a business name). Therefore, cellular data continues to offer a more exclusive, secure way to stay connected.

How to stay safe on public Wi-Fi

Despite cellular data’s security edge, there will still be times when public Wi-Fi is your only option. If you do need to use public Wi-Fi, there are several strategies to keep your data secure. Firstly, always choose a password-protected network over an open one. Additionally, whenever possible, use a Hide Expert VPN. A VPN creates a secure tunnel for your data, making it much harder for anyone to intercept sensitive information, even on an insecure Wi-Fi network.

Finally, follow these critical tips to protect yourself on public Wi-Fi:

  • Limit sensitive activity: Avoid using public Wi-Fi for sensitive tasks, like online banking or accessing personal accounts. Save those for when you’re on a cellular connection.
  • Use strong passwords and Two-factor authentication: Avoid reusing passwords on different accounts. A password manager can help you create strong, unique passwords.
  • Monitor app and website security: Ensure that sites you visit and apps you use are encrypted (look for “https” in the URL).

Must read: How to create a password that can’t be quickly cracked by an AI “password guesser”.

The verdict: Cellular data for sensitive access

In 2025, cellular data still holds a significant security advantage over public Wi-Fi, making it the better choice for tasks involving sensitive information. While public Wi-Fi is more secure than it used to be, it’s still not foolproof. Cellular data offers stronger protection, greater privacy, and a simpler, more direct connection. So, the next time you’re out and about, remember: if security is a priority, stick with cellular data, and if you must use Wi-Fi, take steps to safeguard your connection.