![]() Destroying documents goes well beyond simply throwing them in the trash – they need to be illegible.īusinesses can also benefit from paper shredding because it allows for the elimination of waste in the workspace, and saves space. This can occur with medical information, confidential business files or other information as stated in the state or federal law. A lack of proper paper shredding can lead to confidential information being leaked or abused.ĭepending on your business, you may need to, by law, shred your documents or destroy them properly. But businesses also need paper shredding for documents that:ĭata breaches cost companies millions of dollars a year, and many of the data breaches do not occur on computers. #Datastruction shred company softwareMany files are becoming digital, and businesses are installing encryption software to meet state standards and keep their information secure. Paper shredding – something every company should do. Therefore, renaming the file to something random should actually make the name gone for good, unless you have backup systems taking periodic backups in which case you will have to take care of these also.Why Does My Business Need Document Shredding? FebruPublished by wm_admin Leave your thoughts on ext4 file system, the record of the name does affect the inode itself (with a change of the modification time), but still, the previous name is not stored anywhere.a file rename that does not cross file system boundaries and it is just a metadata change, so it should preserve the inode number.the file system, when accessing data, must search the directory for a particular filename and then convert the filename to the correct corresponding inode number.directories are lists of association structures, each of which contains one filename and one inode number.inodes do not contain file names, only other file metadata.Filename is not saved on disk's sectors like the file content is.įile names and the directory structure have the following implications: ![]() ![]() The directory is responsible for mapping filename to inode and mapping the inode to sectors on disk. The filename is stored in the "directory" data structure which has "(string)filename" and the corresponding "(int) inode" values. Does the filesystem need certain modes enabled in order to support this? I'll copy/paste what shred's output looks like during the file removal: /usr/bin/shred: passwords.txt: pass 1/2 (random). I assumed that this was shred's way of securely removing traces of the file's name. #Datastruction shred company seriesWhen you run /usr/bin/shred in verbose mode you'll see that it goes through a series of file renames before it truncates/unlinks the file. Renaming the file from passwords.txt to something random like "asdfasdf.txt" before shredding it does not resolve the problem. Strings fs | grep pass # <= problem: still shows upĪnd here's the output from the mount command that shows some of the filesystem's modes: type ext4 (rw,relatime,data=ordered) Grep passwords.txt fs # <= PROBLEM: filename still shows Grep secretkey fs # <= does not show up, this is good Grep secretkey fs # <= shows up as expected ![]() Here's how I'm testing it: dd if=/dev/zero of=fs bs=1M count=300 It works great for removing the data of a file, but the file's name is still visible on the disk. I have posted this question on superuser in a different form and no one has answered it successfully. I want to delete a file on a linux ext4 file system such that the disk does not contain the name of the file anywhere on the disk (free space, file system metadata, or anywhere else).įor example, I don't want any trace that a file named "passwords.txt" was ever on the disk. ![]()
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