(1) Where any person who uses a program with legitimate authority or any person who has obtained his or her permission cannot easily obtain necessary information for compatibility and it is inevitable for him or her to obtain the information, he or she may perform decompilation of program codes without obtaining permission of the holder of author's economic rights of the program limited to necessary part for compatibility of the relevant program. <Amended on Aug. 8, 2023>
(2) Where information obtained through decompilation of program codes under paragraph (1) falls under any of the following subparagraphs, it shall not be used:
1. Where information is exploited for the purpose other than the purpose of compatibility or is provided to a third party;
2. Where a program or expression subject to a reverse engineering of program code is exploited in development, production and sale of substantially similar programs or in infringement of copyright of the program.[This Article Added on Apr. 22, 2009]