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Pretty Good Privacy has released its disk encryption software, PGPdisk, and version 2.0 of its secure Internet telephony product, PGPfone, for the Macintosh. PGPdisk costs $80 and uses 128-bit encryption to store data and files. PGPfone 2.0 costs $50 and provides 128-bit encryption for voice communications between modems and over private intranets, public extranets, and the Internet.