IACS recently issued a report supplementing the UR E22 with regards to digital data assurance of Category I, II and III computer based system on board, ship to ship and ships to shore systems. Data Assurance may be intended as the activity, or set of activities, aimed at enforcing the security of data generated, processed, transferred and stored in the operation of computer based systems on board ships.
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https://safety4sea.com/iacs-data-assurance-of-computer-based-system-onboard/