Several methods can be used for data deletion, each with its pros and cons:
Simple Deletion: This method involves removing data files from the system. However, it does not guarantee that the data is unrecoverable. Data Wiping: This involves overwriting existing data with random information multiple times, making it difficult to recover. Data wiping is more secure than simple deletion. Physical Destruction: For physical storage devices, physical destruction (e.g., shredding, crushing) ensures that data cannot be retrieved. Degaussing: This method uses a magnetic field to disrupt the data on magnetic storage devices, rendering it unreadable.