The aforementioned glitch was even assigned a serialized identity by Mitre Corporation’s publicly disclosed cybersecurity vulnerabilities dashboard, which suggests that it wasn’t an urban myth. So, why was it that only a specific Janet Jackson song made life difficult for a particular class of hard drives? The blame can be pinned on the natural resonant frequency of an unspecified 5400 RPM hard drive offered by an unnamed manufacturer that was used by multiple PC brands.
In physics, an item’s natural resonant frequency is the innate frequency of a material at which it vibrates most vigorously. In this case, it had “one of the natural frequencies” for that specific 5400 RPM hard drive model that caused the storage device to malfunction, according to Chen. As a result, a laptop with the vulnerable hard drive inside would crash even if “Rhythm Nation” was playing on another machine nearby.
Here’s our first video from our new series with Raymond Chen, @ChenCravat.
We asked him to tell us about the mystery wherein some music would crash a laptop!!?? pic.twitter.com/BRgfsWEaaC
— Windows Dev Docs (@WindowsDocs) August 12, 2022
This resonance effect can sometimes have devastating effects. Take, for example, the Broughton suspension bridge collapse in 1831, which reportedly crumbled because the vibration produced by the marching of soldiers matched the natural resonance frequency of the bridge, causing it to shake vigorously until it eventually gave up and collapsed (via SciHi). To solve the issue with Janet Jackson’s track crashing hard drives, the maker of the vulnerable storage device “added a custom filter in the audio pipeline” to remove the frequencies that caused it to malfunction, Chen explained in his blog post.
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