Hackers can crash computers via sonic attack - PressReader
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6 hours ago - Hackers
can crash computers via sonic attack ... person's desktop or laptop
computer simply by playing a sound through the device's speakers.Hackers can crash computers via sonic attack
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Researchers
have discovered a way to crash a person’s desktop or laptop computer
simply by playing a sound through the device’s speakers.
Attackers
could potentially use this technique to disrupt surveillance systems
and sabotage medical devices. Playing the sonic and ultrasonic sounds
through the built-in speakers for just 12 seconds was enough to
interfere with a hard drive through high-frequency vibrations.
The
researchers from the University of Michigan in the US and Zhejiang
University in China detailed their findings in a paper titled ‘Blue
Note: How Intentional Acoustic Interference Damages Availability and
Integrity in Hard Disk Drives and Operating Systems’.
“Intentional
acoustic interference causes unusual errors in the mechanics of
magnetic hard disk drives in desktop and laptop computers, leading to
damage to integrity and availability in both hardware and software,” the
paper states.
The discovery is the latest
in a long line of methods available to attackers to crash devices
remotely, which include symbols and messages sent by text message or
other messaging apps.
The researchers
proposed ways to protect against any potential attacks, which included
noisedampening materials in the computer and software updates that
recognised and prevented the sound from being played.
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