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Robot Cop

10.01.2001

Less than half a century has passed since R. Daniel Olivo was born under the pen of Isaac Asimov - a robot police officer, a participant in complex investigations, who more than once saved the lives of his human colleagues in alterations - and now an armed security robot has been created.

The robot, named Roboguard, appeared at the King Mongkut Institute of Technology in Bangkok and is a non-moving combination of a computer, a video camera and a gun mounted on a mechanical arm. The gun is still for children, pneumatic. The pistol is equipped with a laser sight that casts a red light spot on the target.

Roboguard can aim and shoot on its own initiative, noticing the movements of a person intruding into a protected area through infrared sensors. But the owner of the electronic security guard can control the shooting himself via the Internet, being anywhere in the world. In order for the robot to pull the trigger, you must enter a password.

The inventors want to offer their creation to the Thai army and private companies. But critics point out that the infrared guidance system is subject to interference (for example, if such a powerful source of infrared rays as the Sun looks out from behind the clouds), that controlling the security robot over the Internet will be inconvenient and too inertial, and most importantly, that you cannot trust the robot to decide about opening fire.

In this case, it is not clear why a shooting robot is better than an ordinary unarmed burglar alarm?

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You can disrupt the operation of the HDD with the sound of ordinary speakers 30.05.2018

Security researchers at the University of Michigan in the US and Zhejiang University in China have been investigating acoustic attacks that can cause hard drive mechanics to fail and, as a result, damage both hardware and software. The attack does not require special equipment: an attacker can use conventional built-in speakers or connected acoustics to cause permanent errors in the target system.

"Our experiments have shown that audible sound causes the head stack assembly (HSA) to vibrate more than operating standards allow; and ultrasonic noise causes false alarms of the shock sensor, which is designed to prevent head failure. The identified problem can create great difficulties for magnetic hard drives, which are still very common in security-critical applications such as medical devices and other heavily used systems," the researchers said.

Modern mechanical hard drives use sensor-based proactive controllers to adjust the position of the hard drive head. Using ultrasonic vibrations, an attacker can cause false alarms, leading to head parking. Audible signals can also cause the read/write head to vibrate, resulting in poor positioning over the magnetic surface and operation outside of normal parameters. The hard drive will not function as intended by the manufacturer, which can damage both the drive itself and the files stored on it.

"An attacker can attack a hard drive by causing vibration through acoustic emitters built into the victim system (or the closest one to it) ... The attack will be more likely to be successful, the more powerful or physically closer the sound emitter is to the target drive," the statement says. research.

Using this type of attack requires the hacker to have access to nearby speakers. This is obviously problematic, especially for remote attacks. However, the researchers note that something similar can be done with even the simplest phishing attack or otherwise execute malicious JavaScript code on the victim's computer that would play harmful sounds through the system's speakers.

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