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This article explains how to make an encrypted (password protect) compressed file also referred to as an archive file. Note: The built in Windows compression tool cannot password protect a compressed file; therefore a third-party application has to be used. In this article we use 7-Zip utility which is licensed under the GNU LGPL/GNU LGPL + unRAR and hence is free to download and use. The following sections are covered:
Applies to the following Sophos products and versions
Not product specific
Note: Not all compression programs can open archives protected with AES-256 encryption so the recipients may have a problem opening the archive, or you may have a problem opening the file on another computer. Consider the level of protection required for the files and select the method of encryption that is appropriate.
You will have a new file with a .zip file extension in the same folder as the file/files/folder you selected to compress in step three.
If you open the zip and then try to open a file inside the zip file you will be prompted for the password you set previously.
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