Securely Wiping an SSD
Securely Wiping an SSD
When removing files from a hard drive, only the registry gets deleted, freeing up space for new data. The actual information stays until the corresponding sector is overwritten. Overwriting it can recover the data, though it’s challenging and costly. The top consumer solution comes from an old U.S. defense project that repeatedly deletes and rewrites the affected area six times, making restoration extremely tough. With the right tools and effort, this lost information can be reconstructed.
Recommended method on Linux: execute sudo badblocks -w /dev/sda This applies several patterns across each byte of the disk and verifies errors to determine if the drive is suitable for resale. The original information will be erased.