Many observers have suggested defensive techniques that deploy TrueCrypt disk encryption with hidden volume partitions or PGP Whole Disk Encryption rendering the entire computer unbootable thereby making even file time and date stamps unavailable.

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Cyber security might always be an uphill, defensive struggle as techniques and technologies raise the stakes on both sides.

CNN: People and computers need each other

He has made significant strides towards enhancing homeland security, through legal and intelligence techniques and defensive measures.

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