What WPA3 feature ensures that communication remains secure even on open networks?

The feature that ensures secure communication on open networks within WPA3 is Opportunistic Wireless Encryption (OWE). OWE is designed to provide encryption for wireless connections even when users connect to open networks, meaning that no authentication is required for access. This feature helps to protect against eavesdropping, which is particularly important in public Wi-Fi scenarios where data is usually transmitted without encryption.

By implementing OWE, devices can create an encrypted session automatically upon connecting to the open network, ensuring that data exchanged between the device and the access point remains confidential. This is a significant improvement over previous security protocols, which did not offer encryption in open network scenarios.

Enhanced Open is related but primarily focuses on improving user experience without authentication rather than directly providing encryption. Wi-Fi Certified Passpoint deals more with seamless connectivity and does not specifically address encryption on open networks. Protected Management Frames (PMF) enhance security for management frames and help prevent certain types of attacks but do not address overall data encryption on open networks directly.