Keytap2 – acoustic keyboard eavesdropping based on n-gram frequencies

In plain words

Keytap2 is a tool that analyzes keyboard sounds to infer typed text using n-gram frequency analysis. It works by listening to the acoustic patterns produced when keys are pressed and matching them against statistical language models to predict what was typed. Developed for researchers and security professionals interested in acoustic side-channel attacks, it demonstrates how keyboard noise can potentially reveal sensitive information without physical access to a device.

written from the facts on this page · September 2026

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