They claim a 15-40% decrease in entropy over a pure brute force attack. The blip about 'already popular' isn't there. That said, there are gaming oriented neural interfaces on the market. An earlish one for example [1]. They're all basically just commoditized EEG machines. Would not say that they're 'popular with gamers', but they're out there.
https://www.usenix.org/conference/usenixsecurity12/feasibili...
They claim a 15-40% decrease in entropy over a pure brute force attack. The blip about 'already popular' isn't there. That said, there are gaming oriented neural interfaces on the market. An earlish one for example [1]. They're all basically just commoditized EEG machines. Would not say that they're 'popular with gamers', but they're out there.
[1] http://www.ocztechnology.com/nia-game-controller.html