Questions tagged [cpu]

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Anti-Theft Mobile CPU

The newest Android phones use the Qualcomm Snapdragon 855 chipset with its TrustZone/TEE. The Android OS makes sure that a stolen phone, in its assembled form, is not usable. Does Trustzone further prevent the CPU from being removed from a stolen…
bobuhito
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The main things a cloud data center could inject into its hardware

So some cloud service providers like Amazon use custom hardware to improve different characteristics of their servers. This also means they can control the security better, because there is nothing hidden inside their silicon since they made it. But…
Lance
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If you buy a used hard drive or CPU, how to guarantee it doesn't have anything installed or running on it

Say you buy a used hard drive, or a computer (wondering about both cases, something that is just a drive for storage, and something that is an actual running chip). I am not interested in whether or not it's a good idea to buy used stuff, I am…
Lance
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Do any speculative executation attacks affect ARMv7 CPUs?

Do we know if there are speculative execution attacks that affect ARMv7 CPUs at this time? Are there any theoretical risks that need further investigation?
user115400
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Can OS protect us from backdoored CPU?

I was wondering if O.S. can act in such a way to hide from CPU what it is doing? I know that everything is computed only in CPU, but O.S. decides what that is, and keeps track of file system, etc. For example, CPU would not know if data it is…
Jason
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Extracting passwords from recycled machine using Spectre and Meltdown

With Spectre and Meltdown, hackers can extract your password from the CPU cache. If I give someone my computer without the hard drive, can he extract my passwords through the CPU?
justlinx69
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