Got a Pendrive or a Hard disk that just crashed under warranty? Going for a replacement at the Manufacturer? OR Selling some storage device of yours may be to purchase even large memory chunks.
So the chances are when ever you are sharing a data storage device your data and privacy may be compromised. I hear from Smart friends of mine they have got the hard disk completely formatted. But is it all? No it aint. As most of us know whenever we delete a file it is not actually deleted instead its memory references are deleted first. The data gets deleted actually when it is overwritten. Now this leaves us in great security threat. Even after formatting the mass storage device, the data can be retrieved from it. When you erase a file or folder the actual data is not being wiped off the hard drive. The contents of the deleted file remain on the hard disk, available to anyone to be restored or viewed.
In such scenarios to shred the sensitive information entirely you must overwrite the contents of the file on the surface of the hard disk. There are software’s available which can generate a sequence of random information and overwrite that sequence over the original file’s contents so as to make it practically impossible to recover the original contents of the file even in a clean lab. This recovery process can be made even impossible using a military-certified process of data destruction where usage of a cryptographically strong sequence of random numbers is written over the original contents of the file not once but three times in a raw.
Software’s like Undelte, Eraser can be really helpful for the cause.
So, next time when you are getting a storage device replaced or passing it to someone else, make sure you use such software’s to Bullet Proof your Confidentiality.
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