U. of California Researchers Say They Can Identify Text by Analyzing the Sound of Keystrokes

By BROCK READ

Loose lips sink ships. And thoughtless typing could publicize your passwords, according to a team of researchers at the University of California at Berkeley.

The researchers -- Doug Tygar, a professor of computer science at Berkeley, and Li Zhuang and Feng Zhou, two of Mr. Tygar's graduate students --...