Final answer:
The most secure open standards-based wireless security mode is WPA3, which provides individualized data encryption, protection against brute-force attacks, and better security than its predecessor WPA2.
Step-by-step explanation:
The open standards-based wireless security mode that supports the highest level of security is WPA3 (Wi-Fi Protected Access 3). WPA3 is the successor to WPA2 and was introduced to provide stronger security protocols for wireless networks. This security mode introduces features such as individualized data encryption, protection against brute-force attacks, and easier connection methods for devices without displays.
Regarding its predecessor, WPA2 still provides robust security, especially when using the Advanced Encryption Standard (AES) for encryption, but WPA3 enhances the security features and is recommended for the highest level of protection on wireless networks.