Sanitization classified information Wikipedia. Sanitization is the process of removing sensitive information from a document or other message or sometimes encrypting it, so that the document may be distributed to a broader audience. When the intent is secrecy protection, such as in dealing with classified information, sanitization attempts to reduce the documents classification level, possibly yielding an unclassified document. When the intent is privacy protection, it is often called data anonymization. Originally, the term sanitization was applied to printed documents it has since been extended to apply to computer media and the problem of data remanence as well. Redaction in its sanitization sense as distinguished from its other editing sense is the blacking out or deletion of text in a document, or the result of such an effort. It is intended to allow the selective disclosure of information in a document while keeping other parts of the document secret. Typically the result is a document that is suitable for publication or for dissemination to others than the intended audience of the original document. For example, when a document is subpoenaed in a court case, information not specifically relevant to the case at hand is often redacted. Change Bars In Adobe Acrobat' title='Change Bars In Adobe Acrobat' />Government secrecyeditIn the context of government documents, redaction also called sanitization generally refers more specifically to the process of removing sensitive or classified information from a document prior to its publication, during declassification. Secure document redaction techniquesedit. A US government document that has been redacted prior to release. The traditional technique of redacting confidential material from a paper document before its public release involves overwriting portions of text with a wide black pen, followed by photocopying the resultthe obscured text may be recoverable from the original. WAI/WCAG20/Techniques/working-examples/PDF18/title-entry.jpg' alt='Change Bars In Adobe Acrobat' title='Change Bars In Adobe Acrobat' />Alternatively opaque cover up tape or redaction tape, opaque, removable adhesive tape in various widths, may be applied before photocopying. This is a simple process with only minor security risks. For example, if the black pen or tape is not wide enough, careful examination of the resulting photocopy may still reveal partial information about the text, such as the difference between short and tall letters. The exact length of the removed text also remains recognizable, which may help in guessing plausible wordings for shorter redacted sections. Where computer generated proportional fonts were used, even more information can leak out of the redacted section in the form of the exact position of nearby visible characters. The UK National Archives published a document, Redaction Toolkit, Guidelines for the Editing of Exempt Information from Documents Prior to Release, to provide guidance on the editing of exempt material from information held by public bodies. Secure redacting is a far more complicated problem with computer files. Home_Recent_view.png' alt='Change Bars In Adobe Acrobat' title='Change Bars In Adobe Acrobat' />Word processing formats may save a revision history of the edited text that still contains the redacted text. In some file formats, unused portions of memory are saved that may still contain fragments of previous versions of the text. Where text is redacted, in Portable Document Format PDF or word processor formats, by overlaying graphical elements usually black rectangles over text, the original text remains in the file and can be uncovered by simply deleting the overlaying graphics. Effective redaction of electronic documents requires the removal of all relevant text or image data from the document file. This either requires a very detailed understanding of the internal operation of the document processing software and file formats used, which most computer users lack, or software tools designed for sanitizing electronic documents see external links below. Redaction usually requires a marking of the redacted area with the reason that the content is being restricted. Yesterday, I received a note via email from a consultant who asked Why did Adobe eliminate the Previous Page and Next Page buttons from Acrobat X The Malcolm Baldrige National Quality Improvement Act of 1987 PDFPublic Law 100107The Malcolm Baldrige National Quality Award was created by Public Law 100107. US government documents being released under the Freedom of Information Act are marked with exemption codes that denote the reason why the content has been withheld. The US National Security Agency NSA published a guidance document which provides instructions for redacting PDF files. Printed matteredit. A page of a classified document that has been sanitized for public release. This is page 1. 3 of a U. S. National Security Agency report 1 on the USS Liberty incident, which was declassified and released to the public in July 2. Classified information has been blocked out so that only the unclassified information is visible. Notations with leader lines at top and bottom cite statutory authority for not declassifying certain sections. Click on the image to enlarge. Printed documents which contain classified or sensitive information frequently contain a great deal of information which is less sensitive. There may be a need to release the less sensitive portions to uncleared personnel. Shop for adobe acrobat pro at Best Buy. Find low everyday prices and buy online for delivery or instore pickup. 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The printed document will consequently be sanitized to obscure or remove the sensitive information. Maps have also been redacted for the same reason, with highly sensitive areas covered with a slip of white paper. In some cases, sanitizing a classified document removes enough information to reduce the classification from a higher level to a lower one. For example, raw intelligence reports may contain highly classified information such as the identities of spies, that is removed before the reports are distributed outside the intelligence agency the initial report may be classified as Top Secret while the sanitized report may be classified as Secret. In other cases, like the NSA report on the USS Liberty incident right, the report may be sanitized to remove all sensitive data, so that the report may be released to the general public. As is seen in the USS Liberty report, paper documents are generally sanitized by covering the classified and sensitive portions and then photocopying the document, resulting in a sanitized document suitable for distribution. Computer media and fileseditComputer electronic or digital documents are more difficult to sanitize. In many cases, when information in an information system is modified or erased, some or all of the data remains in storage. This may be an accident of design, where the underlying storage mechanism disk, RAM, etc. The general term for this problem is data remanence. In some contexts notably the US NSA, Do. D, and related organizations, sanitization typically refers to countering the data remanence problem redaction is used in the sense of this article. However, the retention may be a deliberate feature, in the form of an undo buffer, revision history, trash can, backups, or the like. For example, word processing programs like Microsoft Word will sometimes be used to edit out the sensitive information. Unfortunately, these products do not always show the user all of the information stored in a file, so it is possible that a file may still contain sensitive information. In other cases, inexperienced users use ineffective methods which fail to sanitize the document. Metadata removal tools are designed to effectively sanitize documents by removing potentially sensitive information. In May 2. 00. 5 the US military published a report on the death of Nicola Calipari, an Italian secret agent, at a US military checkpoint in Iraq. How To Keep Leather Chairs From Cracking Crab. It Still Works Giving Old Tech a New Life. Software How to Run Trend Micro in Safe Mode Trend Micro, an antivirus provider that offers program and online based virus scanning solutions, is a great way to get rid of malicious software. By Margaret Worthington.