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Can I mark my files so that they can be read, but not copied?
Record companies have been wanting to do this for years: make files that you can use but not copy. If that's what you want, you, and they, are doomed. (Continue reading...)

How can I protect my email from being read by others using my computer?
When sharing a computer with others it's important to understand the level of trust you have. That dictates how much security will, and won't work. (Continue reading...)

I've lost the password to a "zip" file. How do I open the file?
ZIP files are a archive format that includes optional password protection. If you don't have the zip file password you may still be able to get in. (Continue reading...)

What does "BEGIN PGP SIGNED MESSAGE" mean?
PGP SIGNED MESSAGE means that a message has been cryptographically signed. That means who signed it can be verified, and tampering can be detected. (Continue reading...)

Will hard disk encryption protect me from network attacks?
Whole disk encryption, or encryption in general, is an important tool in the security arsenal, but it shouldn't be the only tool. (Continue reading...)


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