A common method of securing wireless networks is through the use of WPA2 (Wi-Fi Protected Access II) encryption. WPA2 enhances security by requiring user authentication and encrypting data transmitted over the network. This protocol addresses vulnerabilities found in older security methods, such as WEP (Wired Equivalent Privacy). By implementing WPA2, users can better protect sensitive information from unauthorized access, ensuring a more secure wireless environment. Additionally, regularly updating passwords and enabling network firewalls can further enhance security measures for wireless networks.