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Prevent dmg from beign deleted4/28/2023 ![]() SSDs: Wear leveling and other features prevent SSDs from actually erasing or overwriting sectors even if specifically advised to. ![]() To actually erase the data, you need to overwrite every bit.Īctually, to make it really secure, you need to do that multiple times as data on magnetic drives can be recovered even after overwriting it with zeroes. HDDs: When deleting data or formatting/deleting partitions, you are not actively erasing the data but also only making it not actively indexed. Your data is still at 0x000000.įile recovery programs will easily restore this data. Simply put, after a standard deletion, the data isn't gone but only the link between "Data XY lies at 0x000000" and the actual storage location 0x000000 is being deleted. "Deleting" data mostly does not what most people think it does. This depends a lot on what medium is used to store the data and what you consider "irrecoverable".
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