Buddy o mine has said that he read somewhere that blatting an SSD is not as easy as an old school drive, is this the case? Are there any tools out there that will do the job securely?
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Wiping an SSD for resale
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Wiping an SSD for resale
Originally posted by Stevie Wonder BoyI can't see any way to do it can you please advise?
I want my account deleted and all of my information removed, I want to invoke my right to be forgotten. -
Wiping an SSD for resale
Just let my missus near it, all data will be irretrievably lost. She does this by a concept called 'It did it itself'. -
Originally posted by SimonMac View PostBuddy o mine has said that he read somewhere that blatting an SSD is not as easy as an old school drive, is this the case? Are there any tools out there that will do the job securely?
If it's one of the ones with built in AES encryption a "SECURE ERASE" simply generates a new AES key and forgets the old one and the data is effectively scrambled. If it's not it will write zeros to the flash, so there is probably a slim chance that the CIA could open the chips up in a clean room and read out some residual information from the individual cells but unless you're Osama Bin Laden's boss they are unlikely to bother.While you're waiting, read the free novel we sent you. It's a Spanish story about a guy named 'Manual.'Comment
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Never has a man been heard to say on his death bed that he wishes he'd spent more time in the office.Comment
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Originally posted by Scrag Meister View Post
An SSD doesn't have a 1:1 correspondence between logical block addresses and the physical place that the data is stored in the way that a magnetic disk does. When "overwriting" a particular logical block address on an SSD what actually happens is that the new data is written to a different physical location, the physical - logical block mapping is updated and the original physical copy of data is simply left where it is until such time as the SSD decides to erase that entire flash block and reuse it. Even overwriting the whole disk dozens of times will not guarantee that every physical block is overwritten, and there is in general no way to overwrite a specific physical address other than using the SECURE ERASE command. How well this works depends on the manufacturers implementation of SECURE ERASE.While you're waiting, read the free novel we sent you. It's a Spanish story about a guy named 'Manual.'Comment
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Originally posted by Scrag Meister View Post
Although it will be considered for future releases.Never has a man been heard to say on his death bed that he wishes he'd spent more time in the office.Comment
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Originally posted by Scrag Meister View PostI have emailed the developers and this tool does not currently provide support for wiping SSDs.
Although it will be considered for future releases.Knock first as I might be balancing my chakras.Comment
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Originally posted by doodab View PostTools that erase disks by simply overwriting data multiple times will not work on SSDs.
An SSD doesn't have a 1:1 correspondence between logical block addresses and the physical place that the data is stored in the way that a magnetic disk does. When "overwriting" a particular logical block address on an SSD what actually happens is that the new data is written to a different physical location, the physical - logical block mapping is updated and the original physical copy of data is simply left where it is until such time as the SSD decides to erase that entire flash block and reuse it. Even overwriting the whole disk dozens of times will not guarantee that every physical block is overwritten, and there is in general no way to overwrite a specific physical address other than using the SECURE ERASE command. How well this works depends on the manufacturers implementation of SECURE ERASE.
Doesn't the difficulty in accessing a specific physical address also work against those wanting to recover old data as well though?Originally posted by MaryPoppinsI'd still not breastfeed a naziOriginally posted by vetranUrine is quite nourishingComment
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Originally posted by d000hg View PostWhat happens if you simply format the drive and then run a simple tool that generates a file taking up the whole disk?
Doesn't the difficulty in accessing a specific physical address also work against those wanting to recover old data as well though?
From an attackers perspective the problem is much simpler as it's relatively easy to open the disk and interface directly with the flash chips, bypassing the drive firmware and logical - physical mapping. The chips have a standard interface and devices designed to interface with them are cheap and widely available as they are exactly the same embedded devices used in gazillions of consumer electronics products.While you're waiting, read the free novel we sent you. It's a Spanish story about a guy named 'Manual.'Comment
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