![]() ![]() 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 result-the obscured text may be recoverable from the original. A heavily redacted page from a 2004 lawsuit filed by the ACLU - American Civil Liberties Union v. Secure document redaction techniques A 1953 US government document that has been redacted prior to release. In 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. Originally, the term sanitization was applied to printed documents it has since been extended to apply to computer files and the problem of data remanence. When the intent is privacy protection, it is often called data anonymization. ![]() When the intent is secrecy protection, such as in dealing with classified information, redaction attempts to reduce the document's classification level, possibly yielding an unclassified document. Typically, the result is a document that is suitable for publication or for dissemination to others rather than the intended audience of the original document. It is intended to allow the selective disclosure of information. Redaction or sanitization is the process of removing sensitive information from a document so that it may be distributed to a broader audience. ![]() For other uses, see Redaction (disambiguation). ![]()
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