Protecting a file

Posted by Dennis July 20th, 2011

After you encrypt an Excel fileIn a previous post I talked about encryption, but a user asked me a good question:  What if I only want to protect 1 file or document?  So I did a little digging, and it turns out that Office 2007 and later support AES 128 bit SH1 encryption.  I assume that’s good enough for the banks (?).  It will make it easy to protect Word and Excel docs… the instructions are here.  After that, just try to open the file and you get a prompt for password.  Close it, and it’s encrypted again. I still like Truecrypt for multiple files, but this will be a nice solution for a single file.  Be sure to use a strong password, but DON’T FORGET IT! 

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