New potential risk for anonymity in the Internet was discovered.
Some scripts on the web page forms may send input symbols to server immediately, instead of complete form sending,that usual on a simple www-services.
Server side may measure and save time periods between keypressings. That principially allows to detect a “type manner”
of a concrete person.
Sometime ago ,such methodics was discovered on a registration forms of a Yandex services.
How it was discovered? Very simple: Network transfer indicator was switched on ,exactly in the moments of keys pressing.