What is the main issue with media reuse?
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A. B. C. D.B.
The main issue with media reuse is data remanence, where residual information still resides on a media that has been erased.
Degaussing, purging and destruction are ways to handle media that contains data that is no longer needed or used.
Source: WALLHOFF, John, CBK#10 Physical Security (CISSP Study Guide), April 2002 (page 5).
The main issue with media reuse is data remanence. Data remanence refers to the residual representation of data that remains on storage media even after attempts have been made to erase it. This can occur due to the way data is stored on magnetic media, such as hard disk drives and tapes, or due to the way that solid-state storage devices, such as flash drives and solid-state drives, manage data.
When data is deleted from a storage device, it is typically marked as deleted and the space it occupies is made available for new data to be written. However, the data itself remains intact until it is overwritten by new data. This means that if a storage device is reused without properly overwriting the data, sensitive information may be recoverable by an attacker using specialized software.
Degaussing, media destruction, and purging are all methods that can be used to prevent data remanence and ensure that sensitive information is not recoverable from a storage device. Degaussing involves using a strong magnetic field to erase the data on a storage device, while media destruction involves physically destroying the storage device, and purging involves overwriting the data multiple times with random data patterns to make it difficult or impossible to recover the original data.