4. The method of claim 3 , wherein tokenizing comprises: searching to identify all portions of the normalized source string that meet at least a second search criterion; replacing all identified portions of the normalized source string with corresponding unique temporary textual elements; and associating each temporary textual element with a target textual element stored as part of at least one of: the user-specific translation data and sequestered data associated with the user identification information.
4. The method of claim 3 , wherein tokenizing comprises: searching to identify all portions of the normalized source string that meet at least a second search criterion; replacing all identified portions of the normalized source string with corresponding unique temporary textual elements; and associating each temporary textual element with a target textual element stored as part of at least one of: the user-specific translation data and sequestered data associated with the user identification information. 5. The method of claim 4 , wherein searching to identify all portions of the normalized source string that meet at least the second search criterion comprises at least one of: searching to identify a match between an item in the glossary data with the at least one portion of the normalized source string; searching to identify a match between an item in the translation memory data with the at least one portion of the normalized source string; and applying a regular expression stored as part of the source-identification rule data to identify any portions of the normalized source string as private information for sequestration.