Hackers can steal your Android unlock pattern by turning your phone into a sonar system @ SonarSnoop
A new study published by
Academics from universities in Sweden and the UK have revealed a new way for
hackers to decipher a user’s unlock pattern on his/her Android smartphone.
The study
claims the new technique to be called SonarSnoop, which involves using the
smartphone’s built-in speaker and microphone to create a solar system, in order
to track the finger movement on the screen.
According to
ZDNet’s report on the study, the new hacking method can be used by deploying a
malicious app, which enables the smartphone’s speaker to emit sound waves at a
lower frequency of 18kHz and 20kHz. While these sound waves cannot be heard by
humans, they can be picked up by the smartphone’s microphone after being
bounced off a nearby object, which in this case is the finger. This itself
creates a sonar system similar to that of the submarines, which is used to
track movement.
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