Name a common method used to prevent unauthorized access to wireless networks.

WPA3 encryption is considered a common and improved method for securing wireless networks against unauthorized access. It includes several enhancements over its predecessor WPA2, such as improved security for open networks through the use of opportunistic wireless encryption (OWE) and better password protection with a more robust authentication mechanism. This makes it more resilient against brute-force attacks and provides an overall stronger defense for users connecting to Wi-Fi networks.

In addition, WPA3 uses the Simultaneous Authentication of Equals (SAE) protocol for secure authentication, which prevents attackers from accessing the network even if they have knowledge of the password. By offering better encryption standards and improved security features, WPA3 significantly reduces the risk of unauthorized access compared to earlier methods.

While WEP encryption is outdated and no longer considered secure, WPA encryption and WPA2 encryption were significant advancements in wireless security at their time. However, WPA3 is the most current standard and provides the best protection against today's security threats in wireless networking, making it the common choice for preventing unauthorized access.