The Big Hack: How China Used a Tiny Chip to Infiltrate U.S. Companies – Bloomberg

This is a stunning discovery. I don’t have any insight into it except what’s been published here. However, it’s always been a concern. I remember at least one project that acquired a sample of hard disk controllers (HDC) from vendors with a view to rewriting a driver for OS cache optimization and synchronization.

I’d never actually seen inside a hard drive to that point, except in marketing promotional materials. We were using the HDC with different drives and I was surprised how complex they were. We speculated how easy it would have been to ship a larger capacity drive and insert a chip that would use the extra capacity to write shadow copies of a files that were unseen by the OS. We laughed it off as too complex and too expensive to actually do. Apparently not.

Source: The Big Hack: How China Used a Tiny Chip to Infiltrate U.S. Companies – Bloomberg

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About & Contact

I'm Mark Cathcart, formally a Senior Distinguished Engineer, in Dells Software Group; before that Director of Systems Engineering in the Enterprise Solutions Group at Dell. Prior to that, I was IBM Distinguished Engineer and member of the IBM Academy of Technology. I am a Fellow of the British Computer Society (bsc.org) I'm an information technology optimist.


I was a member of the Linux Foundation Core Infrastructure Initiative Steering committee. Read more about it here.

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