I have interesting anti-fraud use case that i trying to get a guidance for.
The task is to recognize user by his keyboard activity patterns where user is filling an online forms or creating a free text such as emails.
Factors that are important:
- how fast he types
- delays between keystrokes
- delays between key-down and key-up events.
- usage of control keys (DEL, Backspace, Arrows, etc…)
- words and sequences of words
So here we want to consider user’s “favorite” words + timing elements.
Any pointers on how to tackle such task?
I’d love to come up with something simple that works and then build from there.