With disk encryption the files cannot be accessed without the passphrase. Some mobile security services offer remote wipe for lost or stolen devices, but typically the files remain on the device and can be recovered with special tools even though they have been erased. "If the device is lost or stolen, the data is totally opaque and inaccessible," Marlinspike said, adding that his goal was to develop a system "that will transform these consumer devices into enterprise-class secure devices." Once the app is installed on the phone, the user sets a passphrase, which is used to generate a key that encrypts all the data on the disk. Meanwhile, pricing for commercial use is based on the size of the deployment. The beta release is limited to the Nexus S, but will be expanded to other devices soon, he told CNET.
The app includes full disk encryption for all data stored on the device and allows for SD (Secure Digital) card encryption as well, said Moxie Marlinspike, co-founder and chief technology officer of Whisper Systems. Whisper Systems today began offering hard disk encryption for Android-an app called WhisperCore that is free for individuals to use. Moxie Marlinspike, co-founder and chief technology officer at Whisper Systems, demonstrates the new WhisperCore app on an Android phone.
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