The older wireless [[encryption]]-standard, [[Wired Equivalent Privacy]] (WEP), has been [[Fluhrer, Mantin and Shamir attack|shown]] to be easily breakable even when correctly configured. [[Wi-Fi Protected Access]] (WPA and WPA2) encryption, which became available in devices in 2003, aimed to solve this problem. Wi-Fi [[Wireless access point|access points]] typically default to an encryption-free (''open'') mode. Novice users benefit from a zero-configuration device that works out-of-the-box, but this default does not enable any [[wireless security#Counteracting risks|wireless security]], providing open wireless access to a LAN. To turn security on requires the user to configure the device, usually via a software [[graphical user interface]] (GUI). On unencrypted Wi-Fi networks connecting devices can monitor and record data (including personal information). Such networks can only be secured by using other means of protection, such as a [[virtual private network|VPN]] or secure [[Hypertext Transfer Protocol]] over [[Transport Layer Security]] ([[HTTP Secure|HTTPS]]).
[[Wi-Fi Protected Access]] encryption (WPA2) is considered secure, provided a strong [[passphrase]] is used. A proposed modification to WPA2 is WPA-OTP or WPA3, which stores an on-chip optically generated [[onetime pad]] on all connected devices which is periodically updated via strong [[encryption]] then hashed with the data to be sent or received.
This would be unbreakable using any (even quantum) computer system as the hashed data is essentially random and no pattern can be detected if it is implemented properly.
Main disadvantage is that it would need multi-GB storage chips so would be expensive for the consumers.
