One of the very first articles that was published here at Ghacks was an article about securing a computer with True Crypt. The True Crypt developers have made several interesting changes both to the functionality of the hard drive encryption software but also to the speed and performance of it.
Version 6.1 of True Crypt [...]

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You might remember the research paper published by the Center for Information Technology Policy at the University of Princeton that described how disk encryption could be defeated by taking a snapshot of the system memory and analysing that memory for data and keys. I covered the Defeating Disk Encryption story here at Ghacks in February)
The [...]

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I used the new version of True Crypt to encrypt my new external hard drive which has become almost a standard procedure for me to do. Whenever I buy a new hard drive I encrypt it completely with True Crypt. I discovered by chance a way to increase the performance of the AES algorithm in True Crypt.

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I discovered an interesting video at Hack a Day from the University of Princeton demonstrating how to break disk encryption using so called RAM Dumps. This basically takes into account that the encryption key is stored in RAM. While most disk encryption mechanisms are vulnerable while the computer is on or in sleep mode some are even vulnerable when powered off.

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