• Information Systems Review
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• v.21 no.3
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• pp.1-26
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• 2019

Now we are facing with a possibility of having crimes, which have been only possible offline, in cyber spaces as well.Especially, a recent growth in the use of SNS, promoted by popularization of smart phones, also has led an abrupt increase in cyber crime. It would be important to have a understanding of cyber crime and its characteristics by type as well as factors associated with each type of cyber crime in order to devise appropriate preventive measures against cyber crime. However, most of the previous studies on cyber crimesolely made through literature review or indirect approaches. Therefore, this study has been designed to conduct the interview with actual suspects(criminals) of cyber crime to address factors of cyber crime and to devise specific preventive measures and countermeasures against cyber crime. Especially, among various types of cyber crime, this study aims at addressing the 'trades' and 'financial transaction' of crimes committed using the information and communication network and the 'cyber libel/insult'of crimes committed using unlicensed contents, which have been soared recently and become significant issues. The findings of this study could be beneficial for the society since it has managed to conduct the interview and reveal relationships among major factors of cyber crime. The findings of this study could be used for devising and developing proper preventive and countermeasures against cyber crime, in turn reducing and preventing its damage.

• KDI북한경제리뷰
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• v.23 no.10
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• pp.55-66
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• 2021

• Knowledge Management Research
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• v.25 no.2
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• pp.69-94
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• 2024

With the development of cyberspace and its increasing interaction with our daily lives, cybercrime has been steadily increasing in recent years and has become more prominent as a serious social problem. Notably, the "four major malicious cybercrimes" - cyber fraud, cyber financial crime, cyber sexual violence, and cyber gambling - have drawn significant attention. In order to minimize the damage of cybercrime, it's crucial to delve into the specifics of each crime and develop targeted prevention and intervention strategies. Yet, most existing research relies on indirect data sources like statistics, victim testimonials, and public opinion. This study seeks to uncover the characteristics and factors of cybercrime by directly interviewing suspects involved in 'copyright infringement', 'gambling' related to illicit online content, and 'pornography crime'. Through coding analysis and text mining, the study aims to offer a more in-depth understanding of cybercrime dynamics. Furthermore, by suggesting preventative and remedial measures, the research aims to equip policymakers with vital information to reduce the repercussions of this escalating digital threat.

• Journal of Digital Contents Society
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• v.19 no.1
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• pp.193-198
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• 2018

In Korea, the penetration rate of Internet, telephone and smart devices is reaching the highest level in the world. Cyber financial crimes that exploit such infrastructures continue to evolve. Since the first Voice Phishing crime in May 2006, ten years later, there has been a constant occurrence of Voice Phishing crime. Voice Phishing is a crime in which a victim is phoned for false information to figure out the victim's account number and password. This method of Voice Phishing evolves day by day, and it is difficult to investigate. Most of Voice Phishing is a form of international organized crime that is based in Southeast Asia such as China, and it is not easy to eradicate by international cooperation investigation. The purpose of this study is to investigate the actual situation and case analysis of Voice Phishing crime, and to propose the countermeasures against police Voice Phishing counterplan.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.353-355
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• 2017

Recently developed digital devices are being used in cyberspace. Digital device users are engaged in activities such as financial settlement and e-commerce using cyber-connected terminals. With the activation of cyber trading, cyber crimes against users are increasing. Forensic evidence should be obtained from investigations of cybercrime. However, there is a lot of information to analyze digital forensic evidence. In many of these digital information, Scripts are an effective way to secure evidence for cybercrime. In this paper, we study how to secure forensic evidence using scripts. Extract evidence from EnCase and study how to obtain evidence using scripts. This study will be used as the basic data for cyber security for the safe life of the people.

• Review of KIISC
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• v.21 no.2
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• pp.36-46
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• 2011

지난 3월 4일 국내 일부 금융기관과 포털 사이트 등이 분산서비스거부 공격으로 접속이 중단되는 사태가 발생했다. 이번 사건뿐만 아니라 세계 곳곳에서는 범죄적 양상을 띠는 다양한 사이버 범죄 발생이 증가하고 있다. 이에 앞서 미 정부는2009년 "사이버스페이스 정책 리뷰(cyberspace policy review)"를 발표해 사이버보안의 책임 공유, 사이버보안 사고 발생시 긴밀한 대응을 위한 유관기관 간의 정보 공유 및 사고 대응을 위한 체계 구축 등의 전략을 내세운 바 있다. 이러한 전략의 연장선으로 예상되는 사이버보안에 대한 국제표준화 활동이 ITU-T SG17 Q.4에서 진행되고 있어 사이버보안 분야표준화 동향과 함께 Q.4의 주요 의제인 사이버보안 정보 교환 기술에 대한 정보를 제공하고자 한다.

• Convergence Security Journal
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• v.7 no.2
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• pp.65-71
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• 2007

Recently, security softwares are the program that is to protect the users from hackers in using electronic financial services. However heackers commit financial crimes to extort asserts using known hacking skills. In our paper, we analyse vulnerability that can be used to hook financial information in user application area and explain end-to-end encryption which is able to be provided by interacting keyboard security program and PKI application program.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.07a
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• pp.207-208
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• 2023

다크웹을 통한 마약, 금융거래, 해킹 등 사이버 범죄가 증가하면서 다크웹 상의 범죄 추적을 위한 사이버 수사 필요성이 증대되고 있다. Tor와 같은 다크웹 접속 브라우저는 강력한 익명성을 제공하기 때문에 주로 다크웹 운영상의 취약점 분석, 악성코드를 활용한 함정수사 기법이 실효성 높은 다크웹 수사 기술로 간주된다. 그러나 사이트 개설 및 폐쇄가 빈번하게 발생하는 다크웹의 특성상 최신 범죄 정보를 수집하기 위해서는 방대한 다크웹 정보를 실시간 수집하고, 능동적으로 검색 키워드를 확장할 수 있는 고도화된 크롤러 기술 개발이 필요하다. 본 논문은 다양한 다크웹 사이트 중, 아동 음란물 사이트를 크롤링을 통해 수집하고, 수집된 텍스트의 연관 분석을 통해 검색 키워드를 확장하는 수집 체계를 제안한다.

• The Journal of the Convergence on Culture Technology
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• v.4 no.1
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• pp.193-200
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• 2018

This study is an experiential case study of cybercrime fraud that combines pharming and voice phishing in April 2017. Research on victims who have actually suffered in the study of crime or disaster is a very useful field in establishing crime prevention measures. This study is significant in that Korea is relatively poor in this kind of research. I got cyber fraud as a consequence of my loss of reasonable judgment due to mental confusion when a companion dog who was raised for 8 years was in a very dangerous situation with cystitis. Fortunately, I received all the damages in a quick report, but the period was eight months. It took too much time to get back all the damages, so I had to suffer another pain. Based on my experience, I suggest damage prevention measures. First, when a certain condition and a certain amount are transferred, the transaction is automatically stopped or a more strict confirmation procedure is added. Secondly, trafficking means to arrest the perpetrator without any harm to the victim is sought. Third, the victims of crime should be promptly reimbursed for damages or a system for lending their living funds to zero or lower interest rate.

• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.95-96
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• 2024

본 논문은 금융 범죄 중 하나인 보이스피싱을 실시간으로 예방하기 위한 탐지 기법을 제안한다. 제안된 모델은 수화기에 출력되는 음성을 녹음하고 네이버 CSR(Cloud Speech Recognition)을 통해 텍스트 파일로 변환한 후 딥러닝 기반의 KoBERT를 바탕으로 다양한 보이스피싱 패턴을 학습하여 실시간 환경에서의 신속하고 정확한 탐지를 위해 실제 통화 데이터를 적절하게 처리하여, 이를 통해 효과적인 보이스피싱 예방에 도움을 줄 것으로 예상된다.