Curious about how the service area of HDD/SSD/flash works in regards to getting hacked by malware.

I was talking to someone that works with large quantities of blockchain currency, and the subject of cybersecurity came up. I've read that some very advanced malwares can rewrite sectors of the service area on HDD/SSD/flash drives. The malware will use the firmware to mark sectors as bad (that are actually good) and hide its code on those sectors. Any programs that wipe the drive will therefore ignore those sectors, leaving the malware in place to be activated by various …

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