Safeguarding Yourself on Unsecured Public Networks

In today's digital age, the convenience of public Wi-Fi networks has become a staple for many. With nearly everyone owning a smartphone, 91% using a laptop, and 80% having a tablet, the need for secure internet access outside the home is more important than ever. However, public Wi-Fi networks often pose a risk to our personal data due to their lack of encryption. Here's a guide on how to stay secure while using public Wi-Fi.

Protecting Your Data

First and foremost, it's crucial to ensure that your data remains protected. This can be achieved by not entering credit card details or personal information on the provider's network without using SSL or VPN. Several companies in Germany offer secure solutions for this purpose. For instance, m3connect provides private 5G networks for events and businesses, while genua specialises in BSI-certified IT security solutions including secure VPN clients. O2 and Mixvoip also offer VPN-based protection for safe public Wi-Fi use, and encrypted VPN and SD-WAN connectivity for businesses of all sizes, respectively.

Verifying the Network

Before connecting to a public Wi-Fi network, it's essential to verify the network's details. You can check the public IP address of the network using mxtoolbox.com and ensure the DNS name matches the provider's network. Additionally, verify the SSID name and method of encryption as advertised by the provider. If in doubt, disconnect from the network and do not reconnect.

Secure Practices

When connecting to public networks, it's advisable to turn off device-to-device communications and disconnect immediately if you can see other users on the network. Large and small enterprises, including coffee houses, airports, and hotels, should upgrade their networks to provide better security for their customers.

Using public Wi-Fi while maintaining some level of security involves not using it for sensitive activities. Either never connect to open networks or delete them immediately after use, as hackers often use open networks to collect personal information or execute DDoS attacks.

Potential Risks and Precautions

Cyber criminals may attempt to steal credit card data and bank account numbers when using public Wi-Fi. Corporate espionage is on the rise, particularly through hotel Wi-Fi networks. To mitigate these risks, use vouchers or other information when possible, such as name/room number in a hotel setting. Hotel Wi-Fi networks are notoriously easy to breach, so it's essential to be vigilant.

If uncertain, call the provider's support number to validate the method of connection. In full tunnel mode, run VPN software when accessing sensitive websites like banks, financial institutions, corporate servers, etc. The use of wearable devices such as fit bands and smart watches is increasing, so it's important to ensure these devices are also protected.

These guidelines, sourced from Perry Correll, principle technologist at *Xirrus**, serve as a helpful guide for staying secure on public Wi-Fi. By following these tips, you can enjoy the convenience of public Wi-Fi while minimising the risks to your personal data.