The rapid development of the smartphone market and the emergence of mobile applications for all occasions led to the fact that tablets and smartphones are regularly used to work with important data. Whether it’s your resume on LinkedIn, very personal photos sent to a girlfriend or spouse via WhatsApp, Viber or iMessage, a one-time password to enter the online bank, all this data is sent and received via mobile devices. Unfortunately, almost no one knows how often and easily this data, which you will never trust most of your friends, is trivially intercepted by a suspicious stranger sitting ten meters away from you. The main fragments of an unpleasant puzzle called “Mobile Insecurity” are poorly protected Wi-Fi networks and poor-quality implementation of security measures in mobile applications. Cellular Internet access remains quite expensive in many cases, especially if you are traveling abroad. Therefore, almost everyone regularly uses Wi-Fi at airports, cafes and hotels, without paying special attention to the security of these networks. And she, alas, is not as tall as we would like. Just before the World Cup, our experts conducted a study of networks in Sao Paulo and found that every fourth network works in “open” mode, that is, it does not encrypt data when exchanging them with connected devices.
26% of Wi-Fi networks in São Paulo are insecure. Be careful, especially when using mobile applications!
Tweet If you are connected to such an open network, anyone can listen to the data that you send. If WEP protection is used, encryption can be cracked in just five minutes. Therefore, many networks around the world can be hacked in seconds. Our tip is simple – only connect to networks that use WPA2 security. Unfortunately, often you have no choice and have to connect to the only available network. In addition, on smartphones and tablets, there is usually no control over what is transmitted to the network. If in a mobile browser you can at least look for a lock in the address bar that shows that HTTPS protocol protection is used, then with mobile applications there is a different story.
Many mobile applications do not encrypt your data or do not warn of dangerous problems with encryption of the connection.