From academic papers: dd was found to work on local devices in article 1, remote wiping of phones was found to be immature/buggy in 2.
1. Secure State Deletion: Testing the efficacy and integrity of secure deletion tools on Solid State Drives, M Freeman, A Woodward - ro.ecu.edu.au Secure State Deletion: Testing the efficacy and integrity of secure deletion tools onSolid State Drives The research aimed to determine the efficacy and integrity of several hard-drive disk deletion tools on solid state drives (SSDs). SSDs contain new technologies such as wear-levelling and device under provisioning to provide efficient functionality and speed for data management, but the same technologies may also provide obstacles to ensuring that all information is fully removed from the drive. Furthermore SSDs stores files in 4KB pages, yet data can only be deleted in 512KB blocks. This function uses the disk controller to remove all the pages from the block a file is being deleted from, storing the pages in a disk controlled cache. Once the whole block has been reset, the valid data is retrieved from the cache and replaced on an available block. The reset block is added to the SSDs free space. The specific purpose of this paper was to discover if any data was recovered, especially from the disk controlled cache while testing various tools and methods for their effectiveness of securely wiping data off SSDs. All tools except the GNU core utility DD left some file information which was recovered, though none of the recovered files was loadable. Additionally, the paper introduces the concept of the TRIM functionality and provides a baseline further research into this feature. Finally, a comparison of methods for securely deleting Solid State Drives is provided. 🔗 https://ro.ecu.edu.au/adf/65/<https://ro.ecu.edu.au/adf/65/> 2. Remote wiping and secure deletion on mobile devices: A review, MD Leom, KKR Choo, R Hunt - Journal of forensic sciences, 2016 https://onlinelibrary.wiley.com/doi/abs/10.1111/1556-4029.13203 -- David Collier-Brown, | Always do right. This will gratify System Programmer and Author | some people and astonish the rest dave.collier-brown@indexexchange.com<mailto:dave.collier-brown@indexexchange.com> | -- Mark Twain CONFIDENTIALITY NOTICE AND DISCLAIMER : This telecommunication, including any and all attachments, contains confidential information intended only for the person(s) to whom it is addressed. Any dissemination, distribution, copying or disclosure is strictly prohibited and is not a waiver of confidentiality. If you have received this telecommunication in error, please notify the sender immediately by return electronic mail and delete the message from your inbox and deleted items folders. This telecommunication does not constitute an express or implied agreement to conduct transactions by electronic means, nor does it constitute a contract offer, a contract amendment or an acceptance of a contract offer. Contract terms contained in this telecommunication are subject to legal review and the completion of formal documentation and are not binding until same is confirmed in writing and has been signed by an authorized signatory.