블록체인은 현재의 경제사회문화를 대폭 전환시킬 만큼 파괴적인 기술로 전 분야에 영향을 미치고 있다. 세계경제포럼(WEF)은 미래(2018~2027년) 세상을 변화시키는 유망기술로 웨어러블 인터넷, 유비쿼터스 컴퓨팅, 사물인터넷, 인공지능 의사결정 등 21개를 선정하였으며, 이 중 블록체인관련 기술이 2개 분야에 영향을 미치고 있다. 본 고는 블록체인 기술의 영향을 금융구조 혁신, 암호화폐 확산, 생태계 변화 측면에서 살펴보고, 블록체인 기술의 문제점을 불법거래, 화폐위상, 인증거래, 용량 확장으로 구분하여 분석하고 있다. 그리고 블록체인 기술의 도입과 활용에 따른 시사점을 금융, 법제도, 경제, 사회, 기술적 측면에서 제시하고 있다.
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