You need to make sure that any erasure tool you use is designed to work with devices that use wear-levelling. This makes erasing these devices more complicated. However this does not apply to flash-memory based devices such as typical USB memory sticks.įlash memory devices use a concept known as wear-levelling, this means that some areas of storage will be rotated out of use and will not normally be accessible when using normal filesystem operations like writing a file. It is always a mistake to store personal data on the property of someone who you do not (or in future might not) wish to have access to your personal data.Ī note on overwriting USB devices that use Flash memory.įormatting any kind of storage device does not completely destroy data, it normally just recreates the filesystem structures without affecting much of the data contents.įor a hard disk, overwriting every data sector once with zeroes (or any character/octet) is sufficient to erase data. I have forgotten the password … unrecognised deviceĬrush it to small particles using a large hammer then buy your employer a new one (or ask them to deduct the replacement cost from your wages).
The device that is now gone from the list is your USB device.How do I remove my personal data in the encrypted thumb drive?. Note: If you are unsure of the drive designation, unplug the USB drive temporarily before running the df command again. In this example, the USB drive is /dev/sdb1.
Locate the USB in the list and find the corresponding device. The terminal prints out a list of all mounted partitions and relevant information: used space, available space, used space percentage, and the path. Open the terminal and run the following command: df
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