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are u dreaming, dreaming about the spires
way back when before there were
crossed wires?
Want to destroy video evidence of a break-in, prevent ATMs from logging malware attacks, or simply shut down a critical computer system? One possible way to do that might be disrupting hard disk drives with sound waves, either with a specialized device or just by hijacking a nearby speaker.
Want to destroy video evidence of a break-in, prevent ATMs from logging malware attacks, or simply shut down a critical computer system? One possible way to do that might be disrupting hard disk drives with sound waves, either with a specialized device or just by hijacking a nearby speaker.
The reason the tactic allegedly works is simple, per Bleeping Computer: Sound waves cause vibrations, and when a “sound is played at a specific frequency, it creates a resonance effect that amplifies the vibration effect.” Modern hard drives automatically shut off when vibrating to prevent the mechanical arms which perform read-write operations from scratching the data-storage platters and destroying data. That, obviously, can seriously disrupt functions on the associated devices or force them to crash.
As BleepingComputer noted, Princeton and Purdue university scientists recently demonstrated that such an attack is practical with a specialized audio rig that blasted an HDD drive with acoustic waves at specific angles and at various frequencies. Depending on the duration and frequency of the attack, the researchers wrote, they could induce either a temporary fault from which systems recovered or permanent ones requiring a full system reboot.
[Image: Screengrab via arxiv.org]
In their study, the researchers noted that since HDDs are the “most commonly-used type of non-volatile storage due to their enhanced energy efficiency, significantly-improved areal density, and low cost,” there’s a wide number of systems potentially vulnerable to attack.
[Image: Screengrab via arxiv.org]
Those included both CCTV systems and desktop computers, both of which the researchers showed could be messed with by the sound-wave system — though disrupting either required a specially designed sound played from a close distance. Those difficult conditions make this more of an interesting proof of concept of a previously unproven vulnerability, but as the researchers wrote, “Using more powerful sound sources can increase the attack range accordingly.” In the CCTV system case, researchers were able to prevent it from recording further camera data, while they were able to drive the desktop computer into a BSOD state.
One theoretical application of the attack technique suggested by BleepingComputer would be preventing an afflicted ATM from “collecting forensic evidence while fileless malware executes in the ATM’s RAM and dispenses cash to attackers,” but there’s probably lots of ways one could use this maliciously. As a result, the researchers recommended that sensitive computer systems come equipped with acoustic shielding for their HDD components — though maybe it wouldn’t hurt to invest in a solid state drive either.
[BleepingComputer]
Finally, some technical specifications for the Sonic Screwdriver.
After 2025 stampede, control room, CCTVs, curbs at Lairai jatra this year | Goa News - The Times of India
Devi Lairai jatra in Shirgao Bicholim: With the Devi Lairai jatra due in Shirgao on April 21, where a stampede killed six persons last year, North Goa collector Ankit Yadav held a high-level coordination meeting on Saturday to review and strengthen arrangements for this year’s event.Key decisions taken include implementation of a one-way movement system, removal of encroachments and stalls from…
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How safe are our kids?
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Deciphering the Digital Eye: Understanding the Different Types of Video Surveillance Systems | HugeCount
The realm of security has evolved leaps and bounds over the past few decades. The age-old practice of employing guards to keep watch over premises has made way for digital eyes that never blink. Today, video surveillance systems are ubiquitous, acting as silent sentinels that keep a watchful eye over homes, businesses, public areas, and more. But not all surveillance systems are created equal. Here, we’ll delve deep into the various types of video surveillance systems that cater to different needs and scenarios. The Analog Classic: Traditional Closed-Circuit Television (CCTV) Systems When we think of surveillance cameras, the image that […]
Source: https://hugecount.com/opinion/deciphering-the-digital-eye-understanding-the-different-types-of-video-surveillance-systems/
Brother-in-law crushed by stolen pickup: 7 police teams searched 200 CCTVs and interrogated 100 people, main accused arrested, know the whole matter Sach News Today
Brother-in-law crushed by stolen pickup: 7 police teams searched 200 CCTVs and interrogated 100 people, main accused arrested, know the whole matter Sach News Today
Amritanshi Joshi, Bhopal. Police has arrested the main accused who crushed brother-in-law and brother-in-law with a pickup in Bhopal, the capital of Madhya Pradesh. 7 teams were formed to nab the accused. Looking at the seriousness of the matter, more than 200 CCTV footages were scanned. Also, more than 100 people were questioned. In fact, on December 14, the Bolero pickup of Ramsingh, a resident…
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Government sanctioned Rs 30 crore funds for 5,500 CCTVs, surveillance gadgets at Pakistan, Bangladesh borders: BSF DG : The Tribune India
Government sanctioned Rs 30 crore funds for 5,500 CCTVs, surveillance gadgets at Pakistan, Bangladesh borders: BSF DG : The Tribune India
PTI New Delhi, November 30 The government has sanctioned a fund of Rs 30 crore to procure surveillance cameras, drones and other monitoring gadgets for the BSF deployed to guard Indian fronts along Pakistan and Bangladesh even as it is deploying 5,500 security cameras in the front areas, the chief of the paramilitary said Wednesday. Reiterating that the illegal activity of drones along the…
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