Four reasons that demonstrate a wired connection is more secure than Wi-Fi.

Wireless technology, such as Wi-Fi and Bluetooth, has transformed our lives by enabling connections without the need for cables, thereby facilitating communication in various locations. However, in terms of security, wired connections still hold a significant advantage. Despite the convenience of wireless connectivity, there are risks that wired connections manage to avoid, which explains the preference of some for the latter option.

One of the main advantages of wired connections is that they do not expose signals in the air that can be intercepted. Wireless networks transmit information over radio waves that can penetrate walls, making them susceptible to malicious attacks. These attacks include data espionage, where hackers intercept sensitive information such as passwords; man-in-the-middle attacks, which involve an attacker inserting themselves into the communication between devices to access or modify data; and the creation of fake access points, where cybercriminals trick users into connecting to fraudulent Wi-Fi networks in order to steal their credentials.

Unlike wireless networks, a wired connection transmits data through a physical cable, which makes it more difficult to intercept information. Furthermore, hacking a wired network is considerably more challenging. To compromise a wireless network, one simply needs to be within the signal perimeter; on the other hand, an attacker would need physical access to the router or a network point, which represents several barriers. These include restricted access since one cannot connect without physical presence; the need for specialized tools, which require advanced technical knowledge; and the higher risk of being detected, as it is easier to notice someone physically connecting a cable than to capture a wireless invisible attack.

Another critical aspect is that hacking attempts on wired networks often leave physical evidence. While a hacker can breach a wireless network without leaving visible traces, in a wired network, any intrusion attempt involves the use of devices that require physical connections, making detection easier. For example, interception devices can be used to capture data, but their inclusion is detectable through visual inspection, just like modified peripherals.

When it comes to security configurations, wired networks require less attention. Securing a wireless network entails establishing multiple parameters, including appropriate data encryption, the use of secure passwords, and the prevention of open networks. In contrast, wired networks do not expose signals and do not present configurations that could leave a door open to vulnerabilities, thus simplifying the security process and reducing associated risks.

This does not imply that wireless technologies should be avoided. They are very useful, and if configured properly, they can be secure. However, if handling sensitive information or seeking absolute security, opting for a wired connection is the most advisable choice. The best strategy would be to combine both technologies: using wired networks for critical devices and Wi-Fi for the convenience of mobile devices, thereby obtaining the best of both worlds without sacrificing security.