• KSII Transactions on Internet and Information Systems (TIIS)
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• v.15 no.1
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• pp.285-301
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• 2021

Recently, with the diversification of media services and the development of smart devices, users have more opportunities to use digital content, such as movies, dramas, and music; consequently, the size of the copyright market expands simultaneously. However, there are piracy sites that generate revenue by illegal use of copyrighted works. This has led to losses for copyright holders, and the scale of copyrighted works infringed due to the ever-increasing number of piracy sites has increased. To prevent this, government agencies respond to copyright infringement by monitoring piracy sites using online monitoring and countermeasure strategies for infringement. However, the detection and blocking process consumes a significant amount of time when compared to the rate of generating new piracy sites. Hence, online monitoring is less effective. Additionally, given that piracy sites are sophisticated and refined in the same way as legitimate sites, it is necessary to accurately distinguish and block a site that is involved in copyright infringement. Therefore, in this study, we analyze features of piracy sites and based on this analysis, we propose an intelligent detection technique for piracy sites that automatically classifies and detects whether a site is involved in infringement.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.7
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• pp.2459-2472
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• 2022

With the increase in copyright content exports to overseas markets due to the recent globalization of the Korean culture, the added value of the Korean digital content market is increasing at a significant rate. As such, as the size of the copyright market increases, different piracy sites have emerged that generate profits by illegally distributing works without the permission of the copyright holders, resulting in direct and indirect damage to these copyright holders. The existing copyright detection methods used in public institutions for solving this problem are limited, while the piracy sites are ever-changing. Methods are being continuously developed to achieve better detection results. To this end, it is possible to detect the latest infringement site domain by detecting the infringement site domain that is constantly changed through the search engine. This paper proposes an improved piracy site detection method using a search engine to prevent the damage caused by piracy sites.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.5
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• pp.2204-2220
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• 2020

In recent years, digital content has become easily accessible because of internet technology. Representative examples of such digital content include various types, such as music, TV, (program, sport, drama etc.) and films. However, there are cases where internet technology is used in illegal ways without the authorization of the copyright holder for digital content. Such actions have a direct impact on copyright owners' profits and further affect the development of the digital culture industry adversely. Therefore, in this study, we analyze features to detect piracy sites that cause copyright infringement. Further, we develop a piracy site detection crawler based on these features and present the analysis of its performance.

• The Journal of Information Systems
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• v.23 no.4
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• pp.169-196
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• 2014

This study investigates how information and communication technology (ICT) can damage intellectual property rights (IPR) in the movie industry. Utilizing a survey questionnaire to gather information about the extensive use of ICT devices, including tablet PCs and smartphones, we demonstrate how digital piracy behavior is associated with various socio-demographic characteristics. Econometrically, since a large number of people do not engage in piracy activities, we adopt a zero-inflated negative binomial model. We find that people with tablet PCs are more likely to engage in the piracy of movies from peer-to-peer (P2P) sites. In particular, when we categorize ICT devices based on whether they are portable and allow downloads, we find that people with devices equipped with both functions are most likely to engage in movie piracy.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.12
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• pp.4889-4908
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• 2020

With the advances in Information Technology (IT), users can download or stream copyrighted works, such as videos, music, and webtoons, at their convenience. Thus, the frequency of use of copyrighted works has increased. Consequently, the number of unauthorized copies and sharing of copyrighted works has also increased. Monitoring is being conducted on sites suspected of conducting copyright infringement activities to reduce copyright holders' damage due to unauthorized sharing of copyrighted works. However, suspected copyright infringement sites respond by changing their domains or blocking access requests. Although research has been conducted for improving the effectiveness of suspected copyright infringement site detection by defining suspected copyright infringement sites' response techniques as a lifecycle step, there is a paucity of studies on automation techniques for lifecycle detection. This has reduced the accuracy of lifecycle step detection on suspected copyright infringement sites, which change domains and lifecycle steps in a short period of time. Thus, in this paper, an automated detection technique for suspected copyright infringement sites is proposed for efficient detection and response to suspected copyright infringement sites. Using our proposed technique, the response to each lifecycle step can be effectively conducted by automatically detecting the lifecycle step.

• Annual Conference of KIPS
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• 2021.05a
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• pp.148-150
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• 2021

저작권 콘텐츠의 해외 진출과 함께, 국내·외 저작권 시장 규모가 증가하고 있다. 이와 동시에 등장한 저작권 침해사이트는 메인 페이지에 저작권 침해사이트를 대표하는 이미지를 게시하는 특징이 있다. 이러한 저작권 침해사이트는 음악, 영화, 드라마 등의 저작권 콘텐츠를 불법 유통시키며 저작권 시장에 피해를 입히고 있다. 공공기관에서는 저작권 침해를 방지하기 위해 저작권 침해사이트를 차단하는 등의 대응을 하고 있지만, 저작권 침해사이트의 생성 속도에 비해 침해 여부 판단 속도가 상대적으로 느려서 차단에 어려움이 존재한다. 따라서, 본 논문에서는 저작권 침해사이트의 대표 이미지를 활용한 이미지 블랙리스트에 기반하여 저작권 침해 의심 사이트 탐지 기법을 제안하고자 한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.13 no.7
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• pp.1279-1284
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• 2009

With the advance of multimedia technology, multimedia sharing among multiple devices has become the main issue. This allows users to expect the peer-to-peer distribution of unprotected and protected contents over public network. Inevitably, this situation has caused an incredible piracy activity and Web sites have begun to provide copyrighted A/V data for free. In order to, protect the contents from illegal attacks and distribution, digital right management (DRM) is required. In this paper, we present the minimal cost scrambling scheme for securing the copyrighted multimedia using the data encryption standard (DES) encryption technique. Experimental results indicate that the proposed scrambling techniques achieve a very good compromise between several desirable properties such as speed, security, and file size.

• Journal of Korea Technology Innovation Society
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• v.20 no.4
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• pp.1288-1308
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• 2017

When looking at the online copyright infringement, the advertisements have served as a revenue source. Recently, copyright holders and state agencies have requested to stop and withdraw posting the ad. in order to prevent copyright infringement. This way is very easy and efficient. However, the problem is that it is not clear whether the request is appropriate. For the request to be valid, posting the ad. should be a kind of indirect infringement, or if not, it must have a suitable reason. If there is no basis or reason for the two, the request should not be asked recklessly. In the US relevant cases, something more than simple relationship with direct infringers or more material contribution to the direct infringement is required to impose secondary liability for copyright infringement. However, just posting the ad. cannot be considered as the close relationship and moreover, it is not material contribution. Thus, posting the ad. is not secondarily liable for copyright infringement. In addition, the bills which was proposed in 2011, so called SOPA and PIPA, had a provision which can stop and withdraw the ads in the piracy sites. Its opponents raised the following problems: withdrawing the ad. is the censorship, gives the burdensome to the sites, and causes the imbalance due to the overload protection of copyright. Also, under the ad blocker case, to remove the ad. discretionally consists of illegal activity or copyright infringement. As a result, because the request to stop and withdraw posting the ad. is not reasonable, the request should be asked carefully.