Wi-Fi network security came under threat last year when the KRACK vulnerability struck.
I covered this in a post back in October 2017 - What's the Krack? It's a Wi-Fi security vulnerability since you ask?
WPA3 (Wi-Fi Protected Access 3) is an upgraded version of WPA2 (of course) that provides improved security for wireless networks which is much needed after the Krack vulnerability being found in WPA2 last year.
Krack (Key Reinstallation Attack) was discovered last October which left wireless routers and devices open to potential hackers by making it possible for them to exploit WPA2 and steal passwords and data.
Microsoft and Apple issued patch updates to protect against the problem which seems to have gone away now.
WPA is essentially a security protocol that performs a 'handshake' when the wireless device authenticates with the Wi-Fi router using a password enabled connection. It confirms the password using encryption to safeguard against those pesky hackers getting onto your wireless network.
The biggest improvement between WPA2 and WPA3 is that it protects data when accessing the internet on an open public Wi-Fi network. Using our mobile devices in public areas on open Wi-Fi is probably the riskiest method when it comes to security. WPA3 uses a new system called Opportunistic Wireless encryption which encrypts the data of individual users securing the connection between every device on the device and the wireless router.
Even in cases of weak passwords, WPA3 makes it difficult for hackers to exploit it by using different combinations or lists to access vulnerable devices. After so many failed unauthorized attempts, WPA3 will just block the access.
Using 192-bit encryption (as opposed to 64-bit in WPA2), WPA3 will be used in highly secure secure environments such as government and military networks. WPA2 will continue to be supported as the standard wireless protocol on most existing devices until WPA3 becomes available later this year.