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• A prison inmate gained access to the on-line prison information system and managed to alter his release date. The alteration was detected by a suspicious deputy comparing the on-line entry with manual records, after the inmate had bragged about how he was going to get out early.14 Cryptography to ensure data integrity might have helped to detect the alteration of the files.

14 San Jose Mercury News, December 14, 1984.

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