• 한국인터넷방송통신학회논문지
• /
• 제16권4호
• /
• pp.109-115
• /
• 2016

라이프로그는 개인차원에서 일상생활을 오랫동안 기억하거나 공유하기위한 단순한 기록목적으로 시작되었지만 최근 다양한 기업들이 각각의 전문성을 활용한 분석방법을 도입함으로써 개인의 삶의 질이 향상되는 새로운 라이프로 그 비즈니스가 형성되고 있다. 이러한 중요한 장점에도 불구하고 개인 건강 라이프로그 서비스는 데이터의 보안에 관련된 사용자 입장에서는 피할 수 없는 중요한 도전을 제기하고 있다. 개인 건강 라이프로그 서비스가 활성화되면서 사용자 개인정보 침해가 발생하고 사용자의 민감한 의료정보가 유출되는 문제가 증가되고 있다. 본 논문에서는 개인 건강 라이프로그 서비스를 위한 보안 참조모델을 제시하고자 한다. 제안된 보안 참조모델은 건강 라이프로그 서비스 제공을 위한 개인 정보 보호 방안에 명확한 지침을 제시하여 관련 분야의 산업 활성화 및 신 시장 개척을 이끌어 낼 수 있을 것으로 예상된다.

• International Journal of Computer Science & Network Security
• /
• 제21권9호
• /
• pp.297-302
• /
• 2021

The development of various phishing websites enables hackers to access confidential personal or financial data, thus, decreasing the trust in e-business. This paper compared the detection techniques utilizing URL-based features. To analyze and compare the performance of supervised machine learning classifiers, the machine learning classifiers were trained by using more than 11,005 phishing and legitimate URLs. 30 features were extracted from the URLs to detect a phishing or legitimate URL. Logistic Regression, Random Forest, and CatBoost classifiers were then analyzed and their performances were evaluated. The results yielded that CatBoost was much better classifier than Random Forest and Logistic Regression with up to 96% of detection accuracy.

• 한국컴퓨터정보학회:학술대회논문집
• /
• 한국컴퓨터정보학회 2018년도 제57차 동계학술대회논문집 26권1호
• /
• pp.167-170
• /
• 2018

모바일 오피스 확산과 함께 개인 소유의 스마트 폰, 태블릿PC 등을 업무 환경에 사용하는 BYOD 시대에 도래했다. BYOD 등장으로 기업 내부 인프라가 폐쇄적 환경에서 개방적 환경으로 전환했고 언제 어디서나 개인 스마트 기기가 기업 인프라 접근 허용이 가능해 졌다. 모바일 오피스는 휴대성이라는 편리함 이면에 일반 PC환경보다 더 많은 다양한 보안 위협과 취약점이 존재하고 스마트폰 분실 및 정보 유출, 악성코드 등의 위협이 존재하므로 더 높은 수준의 근본적인 보안대책 강구가 필요하다. 본 논문에서는 모바일 개인정보와 BYOD 환경의 모바일 오피스에 대한 보안 위협을 연구하고 모바일 오피스 개인정보 보안 방안을 제시함으로써 모바일 오피스 서비스를 제공하는 기업에게 개인정보 보안 전략을 수립하는 가이드라인을 제공하고자 한다.

• 정보보호학회논문지
• /
• 제29권4호
• /
• pp.885-895
• /
• 2019

최근 금융권 해킹사례를 통해서 알 수 있듯이 공격자는 금융회사를 직접 해킹하기 보다는 보안관리가 허술한 수탁자를 대상으로 해킹공격을 시도하고 있다. 이로 인해 위탁자는 수탁자에 대한 보안점검 및 통제를 강화하고 있으나 영세 수탁자의 경우 전산설비 부족 및 보안장비 도입 시 과도한 비용 발생으로 인해 정보보호 투자에 미흡하다. 본 논문에서는 신용카드사들로부터 개인정보를 제공 받은 영세수탁업체의 보안강화를 위해 개인정보 라이프 사이클 기준으로 취약점에 대해 알아 보고자한다. 취약점 해결방안으로 클라우드 컴퓨팅 서비스에 소송관리시스템을 구축하여 사용하고 데이터 전송구간은 가상사설망을 설치하여 기밀성 및 무결성을 확보한다. 또한 사용자 보안강화를 위해 사용자PC에 PC방화벽, 출력물 보안등의 설치를 통한 개인신용정보 처리 보호방안을 제시하고자 한다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제12권6호
• /
• pp.2946-2959
• /
• 2018

Choi et al's work [1] in 2015 demonstrated that the resident registration numbers (RRNs) of individuals could be conveniently estimated through their personal information that is ordinarily disclosed in social network services. As a follow-up to the study, we introduce the status of the RRN system in Korea in terms of its use in the online environment, particularly focusing on their secure use. We demonstrate that it is still vulnerable against a straightforward attack. We establish that we can determine the RRNs of the current president Moon Jae-In and the world-class singer PSY.

• 한국컴퓨터정보학회논문지
• /
• 제22권9호
• /
• pp.65-71
• /
• 2017

This paper proposes a smart phone authentication method based on user's behavior and habit that is an authentication method against shoulder surfing attack and brute force attack. As smart phones evolve not only storage of personal data but also a key means of financial services, the importance of personal information security in smart phones is growing. When user authentication of smart phone, pattern authentication method is simple to use and memorize, but it is prone to leak and vulnerable to attack. Using the features of the smart phone pattern method of the user, the pressure applied when touching the touch pad with the finger, the size of the area touching the finger, and the time of completing the pattern are used as feature vectors and applied to user authentication security. First, a smart phone user models and stores three parameter values as prototypes for each section of the pattern. Then, when a new authentication request is made, the feature vector of the input pattern is obtained and compared with the stored model to decide whether to approve the access to the smart phone. The experimental results confirm that the proposed technique shows a robust authentication security using subjective data of smart phone user based on habits and behaviors.

• International Journal of Computer Science & Network Security
• /
• 제22권6호
• /
• pp.256-274
• /
• 2022

The continuous information technology and telecommunication (ICT) developments inspire several Saudi Arabia citizens to transact and interact online. However, when using online platforms, several people are likely to lose their personal information to cybercriminals. In the survey, 553 Saudi Arabia citizens and 103 information technology (IT) specialists confirm the expansion of digital economy and the need for smart cities with various services, including e-commerce and solid cyber security. 96.6% of the participants believe Saudi Arabia is digitalizing its economy; yet, 33.3% of the participants believe that residents are uninformed about living and operating in smart cities. Several people (47.29%) with medium internet speed are more aware about smart cities than those with fastest internet speed (34%). Besides, online transactions via credit cards subjected 55.5% of the participants to privacy and security issues. These findings validate the essence of cyber security awareness programs among Saudi Arabia citizens and IT professionals to boost public trust and acceptance of cybersecurity frameworks.

• International Journal of Computer Science & Network Security
• /
• 제21권5호
• /
• pp.113-120
• /
• 2021

The adoption of the General Data Protection Regulation (EU) 2016/679 transformed approaches and concepts to the implementation of the personal data protection mechanism in the European Union. Within the EU, almost all countries have adapted a new protection mechanism, which requires a study of the specifics of its use. The article intends to assess the legal provisions of the current mechanism of personal data protection in the EU. The author studied the mechanism of personal data protection under the General Data Protection Regulation (EU) 2016/679 (GDPR) based on the concept of contextual integrity and analysis of EU legislation on personal data protection. The scientific publications for 2016-2020 were reviewed for the formation of ideas of a new personal data protection mechanism in the EU, informative and transparent analysis of legal provisions. The article notes that the personal data privacy and protection is increasing, there is an ongoing unification of the legal status of personal data protection and the formation of a digital market for dissemination, exchange, control, and supervision of data. Cross-border cooperation is part of the personal data protection mechanism. The author proved that the GDPR has changed approach to personal data protection: the emphasis is now shifting to the formation of a digital market, where the EU's role in ensuring regulation is crucial. The article identifies the emergence of a new protectionist legal system and strengthening of legal provisions regarding privacy. This legal system needs unification and harmonization in accordance with national legislation, is territorially fragmented and differentiated within the EU.

• International Journal of Computer Science & Network Security
• /
• 제21권4호
• /
• pp.249-254
• /
• 2021

Our society is depending on mobile devices that play a major role in our lives. Utilizing these devices is possible due to their speed power and efficiency in performing basic as well as sophisticated operations that can be found in traditional computers like desktop workstations. The challenge with using mobile devices is that organizations are concerned with the interference between personal and corporate use due to Bring Your Own Device (BYOD) trend. This paper highlights the importance of mobile devices in our daily tasks and the associated risks involved with using these devices. Several technologies and countermeasures are reviewed in this paper to secure the mobile devices from different attempts of attacks. It is important to mention that this paper focuses on technical measures rather than considering different aspects of security measures as recommended by the cybersecurity community.

• Journal of Multimedia Information System
• /
• 제4권4호
• /
• pp.263-270
• /
• 2017

Various security threats exist in the smart grid environment due to the fact that information and communication technology are grafted onto an existing power grid. In particular, smart metering data exposes a variety of information such as users' life patterns and devices in use, and thereby serious infringement on personal information may occur. Therefore, we are in a situation where a de-identification algorithm suitable for metering data is required. Hence, this paper proposes a new de-identification method for metering data. The proposed method processes time information and numerical information as de-identification data, respectively, so that pattern information cannot be analyzed by the data. In addition, such a method has an advantage that a query such as a direct range search and aggregation processing in a database can be performed even in a de-identified state for statistical processing and availability.