![]() ![]() On intact hard drives, specialised software can be used to destroy data by overwriting it and therefore erasing it so it cannot be recovered. ![]() Special kinds of analysis software may be capable of reading these blocked/protected areas of storage, however, as long as this is still physically possible. Hard disks also permit the setup of host protected areas (HPAs) on the disk. Common to all of these storage types is the fact that they prevent applications from accessing faulty areas of storage - and data destruction programs are of course applications. Modern semiconductor-based storage media (SSDs) and even the hard disks that still use magnetic media (HDDs) - or combinations of the two (SSHDs) - use highly complicated mechanisms to manage any errors that may occur. Deleting data correctlyĮven the statement "erasing data properly" needs to be understood with the proviso that it applies only to data to which the data destruction program actually has access. ![]() A format operation is therefore not a secure data destruction process. Here too, the original digital data is still present on the storage medium. During a normal, "quick" format (also known as a high-level format), the filesystem structure is merely recreated, which means that the index (table of contents) is deleted and replaced with a new index. In certain cases, even formatting the entire hard disk or storage medium may not permanently erase all of the data present. While this data has been deleted, it is still present on the hard disk, even though it cannot be viewed with the normal kinds of user-level tools. But these files may in fact never be overwritten. However, this only deletes references to the files from the index (the "table of contents" for the hard disk), so the operating system knows the files can be overwritten. Once in the Recycle Bin, these data files are only actually erased when storage space needs to be freed up or if the operating system user empties the Bin themselves. On Windows, files that are deleted are moved to the Recycle Bin first in most cases - just as you throw something into the wastepaper basket under your desk and not the bin on the street. Source: © mybaitshop / "Normal" deletion is not enough ![]() You should always erase or physically destroy data on your computer, device or storage medium before passing it on to third parties or having it recycled as electronic waste. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |