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If you’re serious about keeping secrets, try hard disk encryption with DM-Crypt and LUKS.
An encrypted hard disk on your server is no help if valuable data on CDs or DVDs falls into the hands of spies. We’ll show you some convenient solutions for encrypting data on removable media.
The controversial Web Cryptography API offers flexible encryption for web applications, but it also lays the groundwork for content providers to implement more powerful access restrictions through DRM.
How easy is it to lose a USB stick? Why not protect your data just in case the stick falls into unfriendly hands?