Never create a new TrueCrypt volume by cloning an existing TrueCrypt volume. Always use the TrueCrypt Volume Creation Wizard to create a new TrueCrypt volume. If you clone a volume and then start using both this volume and its clone in a way that both eventually contain different data, then you might aid cryptanalysis (both volumes will share a single key set). Also note that plausible deniability is impossible in such cases. See also the chapter How to Back Up Securely.
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