Repeatedly writing over the drive using normal IO operations.Whole-drive sanitization There are four different techniques for sanitizing an entire SSD: For this reason, it is so important to sanitize the media completely. However, it can also produce copies of the data that are invisible to the user but recoverable by a sophisticated attacker. The layer of indirection enhances SSD performance and reliability by hiding the flash memory’s idiosyncratic interface and managing its limited lifetime. SSDs maintain a layer of indirection between the logical block addresses that computer systems use to access data and the raw flash addresses that identify physical storage. magnetic disks) and the algorithms they use to manage and access that data. Flash-based solid-state drives (SSDs) differ from hard drives in both the technology they use to store data (flash chips vs. Reliably Erasing Data from an SSD Reliably erasing data from storage media (sanitizing the media) is a critical component of secure data management.

Secure ssd erasure