keystroke detection

Typing behavior is one of the dynamic biometric features that can be used to identify individuals.

The rhythm with which certain words or letter combinations are entered and the time intervals between letters are among the characteristic features used for behavioral biometric recognition.

Conclusions about keyboard input can be drawn from typing behavior, and entire inputs can be reconstructed using appropriate keystroke programs. Such eavesdropping programs can be used to spy out text passwords or the personal identification number( PIN) without the user noticing.