But there is another type of biometrics that can be used to authenticate users – behavioral biometrics (“something you do”: speaking, typing, etc.).
The latter – information about how a user types on a keyboard – is particularly problematic if he or she wants to maintain their privacy online, as there are likely many websites that record these patterns and use (or might use them in the future) to identify users with a very high degree of certainty.
So, he challenged infosec consultant Paul Moore to come up with a working solution to thwart this type of behavioral profiling.
The result is a Chrome extension called Keyboard Privacy, which prevents profiling of users by the way they type by randomizing the rate at which characters reach the DOM.