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7

Short answer: That won't work. You'll need to degauss it, which will render the drive unusable. Long answer: Sure. Get a powerful magnet, put it next to the hard drive, with N facing the drive. Then flip it around so S faces the drive. Then flip it again, then again. Do this a few thousand times a second. If you do it any slower or just put it near the ...


6

Well, yes, it's called a switch. Microphones from a hardware perspective are (in the case of electrets, at least) a capacitive component which produces a small current when the membrane moves due to sound. By amplifying this signal you can capture a sound signal. By simply disconnecting the audio line from the mic itself, or just turning off the amplifier ...


4

SATA has no separate wires for reading and writing so a pure hardware solution is not possible. You actually have the same problem with Ethernet too: with Fast Ethernet you had separate Tx and Rx (Transmit and Receive) wires and thus could simply built a guaranteed passive network tap by not connecting the Tx lines. With Gigabit Ethernet this is no longer ...


3

Not without opening the hard drive. This magnet reseller tried several magnets on a running hard drive, without any bad results. It would also probably not securely delete your data when holding magnets directly to the platter, altough it may flip some bits.


2

I'll be using modern Intel CPUs as an example of hardware. For most other hardware, you can identify bugs, but often you cannot patch it, but only work around it by trying to avoid the buggy behavior. Hardware bugs are identified similarly to the ways bugs are identified in closed source software. Internal audits and reports in the wild are mostly ...


1

Why aren't hardware R/W switches used to defend hard drives? Because this is a feature in search of a market. This would be a niche market, at best, because software solutions and other products (like WORM media) exist to provide this functionality already. Bottom line, not enough people want it (and would be willing to pay enough to make it ...


1

Well, when talking about the internals of a computer, Any access point you can access physically without pulling hardware out, so basically anything you can attach a probe-lead to without causing a short. So what can what is not accessible. CPU, this is often only available for sniffing from when using specialized equipment in between the CPU and the ...


1

A potential attack vector you haven't covered so far is something called "acoustic cryptanalysis", although I don't know if this is relevant in your case. Some experts could actually determine a RSA key using the sound the CPU makes (which humans aren't able to hear). http://www.cs.tau.ac.il/~tromer/acoustic/ I haven't thought of a practical solution as of ...



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