Theoretically, the Ministry of Justice and the Financial Services Commmission under the Financial Supervisory Service are responsible for resolving disputes. However, recent public announcements of the FSS officials suggest that they will not yet significantly regulate the blockchain industry.
Still, the Financial Supervisory Service is the most suitable governmental body for regulating electronic transactions, cryptocurrencies and related projects. Other authorities, such as Personal Information Protection Commission, Ministry of the Interior and Safety, Korea Communications Commission, Korea Internet & Security Agency less likely to have expertise to effectively regulate possible issues with online transactions. However, they can resolve issues related to Blockchain, Data Access and Safety, Privacy etc.
Article 39 of the The Electronic Financial Transactions Act determines the order of supervision and inspection:
“The Financial Supervisory Service shall supervise whether financial companies and electronic financial business entities abide by this Act or orders issued under this Act, following instructions from the Financial Services Commission.”
“The Governor of the Financial Supervisory Service may inspect the electronic financial business and other related financial conditions of a financial company and an electronic financial business entity and, if deemed necessary to conduct such inspection, ask the financial company and the electronic financial business entity to submit data relating to its or his/her business operations and financial conditions or to order the attendance of all relevant persons” <Amended by Act No. 11814, May 22, 2013>
Articles 46, 49-51 of The Electronic Financial Transactions Act determine violations, administrative fines and penalty provisions.
Also,
The Act on the Development of Cloud Computing And Protection of Its Users, Article 30, also determines order of inspection and investigation dispute cases: