• 정보보호학회논문지
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• 제24권6호
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• pp.1225-1241
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• 2014

고객정보 유출 방지를 위해 금융기관은 DLP(Data Leaks Prevention) 관련 정보보호 제품을 도입하고 내부통제 정책을 강화하고 있다. 그러나 정보의 수집, 제공, 이용, 저장 과정의 핵심적 역할을 담당하는 응용프로그램에 대한 관리 및 기술적 통제는 매우 미흡한 실정이며, 응용프로그램을 통한 정보유출 사고를 예방하거나 대책 마련을 위한 내부통제 정책의 이행에 어려움을 겪고 있다. 본 논문에서는 금융기관의 개인정보 취급 및 주요 유통 경로 현황 분석을 통해 문제점을 제기하고 정보유출 방지를 위한 효율적인 내부통제 보안기술의 필요성을 제시하였다. 이에 따라 가상화 및 모바일 분야에서 부분적으로 사용되고 있는 컨테이너 기술을 응용하여 클라이언트 PC 응용프로그램의 보안 취약점을 보완하고 정보유출 방지 기능을 제공하는 새로운 보안 컨테이너를 설계 구현하였으며, 실제 금융기관 업무시스템에 적용하여 정보유출 방지 및 IT 컴플라이언스 내부통제와 관련된 정책 수행능력의 효과성을 검증하였다. 또한 정책 설정을 통해 보안 컨테이너에 추가 보안 기능을 제공하고 보안 컨테이너를 재사용함으로써 보안 취약점 대응 비용 및 시간을 줄여 IT 컴플라이언스 규제 준수를 위한 보안 컨테이너의 효용 가치를 높였다.

• 융합보안논문지
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• 제17권2호
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• pp.3-13
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• 2017

지식정보화 사회가 도래하면서 많은 국내기업이 핵심기술 및 지식재산 확보를 위해 기술개발에 많은 투자를 하고 있다. 하지만 적극적인 기술개발 투자에 비해 기업이 보유한 기술을 보호하기 위한 보안투자가 미흡한 결과 다수의 기업 및 연구소에서 기술 유출 사건이 급격하게 증가하고 있다. 이러한 기술유출의 증가는 단순히 기업에 피해뿐만 아니라 국가 경제에도 직 간접적인 악영향을 미치고 있는 실정이다. 산업기술유출은 주로 전 현직 직원에 의해 이뤄지고 있지만, 이를 중점적으로 비교 분석한 연구는 많지 않다. 따라서 본 연구는 2014년부터 2016년 동안 발생한 산업기술유출 사례를 기술유출 피해기업의 유형, 회사 내 기술유출 주체자의 직위, 기술유출의 공범여부, 기술유출에 사용된 도구, 기술유출의 동기로 유형화하여 산업기술유출 실태를 파악하였다. 이러한 유형별 분석을 통해 산업기술유출의 패턴과 특징에 대해 조사하고 산업기술유출 방지를 위한 산업보안 증진방안을 모색하였다.

• Journal of Chest Surgery
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• 제49권2호
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• pp.99-106
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• 2016

Background: Barium swallow is performed following esophagectomy to evaluate the anastomosis for detection of leaks and to assess the emptying of the gastric conduit. The aim of this study was to evaluate the reliability of the barium swallow study in diagnosing anastomotic leaks following esophagectomy. Methods: Patients who underwent esophagectomy from January 2000 to December 2013 at our institution were investigated. Barium swallow was routinely done between days 5-7 to detect a leak. These results were compared to clinically determined leaks (defined by neck wound infection requiring jejunal feeds and or parenteral nutrition) during the postoperative period. The sensitivity and specificity of barium swallow in diagnosing clinically significant anastomotic leaks was determined. Results: A total of 395 esophagectomies were performed (mean age, 62.2 years). The indications for the esophagectomy were as follows: malignancy (n=320), high-grade dysplasia (n=14), perforation (n=27), benign stricture (n=7), achalasia (n=16), and other (n=11). A variety of techniques were used including transhiatal (n=351), McKeown (n=35), and Ivor Lewis (n=9) esophagectomies. Operative mortality was 2.8% (n=11). Three hundred and sixty-eight patients (93%) underwent barium swallow study after esophagectomy. Clinically significant anastomotic leak was identified in 36 patients (9.8%). Barium swallow was able to detect only 13/36 clinically significant leaks. The sensitivity of the swallow in diagnosing a leak was 36% and specificity was 97%. The positive and negative predictive values of barium swallow study in detecting leaks were 59% and 93%, respectively. Conclusion: Barium swallow is an insensitive but specific test for detecting leaks at the cervical anastomotic site after esophagectomy.

• Journal of Trauma and Injury
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• 제26권3호
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• pp.151-156
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• 2013

Purpose: Traumatic cervical SCI is frequently accompanied by dural tear and the resulting cerebrospinal fluid (CSF) leak after surgery can be troublesome and delay rehabilitation with increasing morbidity. This study evaluated the incidence of intraoperative CSF leaks in patients with traumatic cervical spinal cord injury (SCI) who underwent anterior cervical surgery and described the reliable management of CSF leaks during the perioperative period. Methods: A retrospective study of medical records and radiological images was done on patients with CSF leaks after cervical spine trauma. Results: Seven patients(13.2%) were identified with CSF leaks during the intraoperative period. All patients were severely injured and showed structural abnormalities on the initial magnetic resonance image (MRI) of the cervical spine. Intraoperatively, no primary repair of dural tear was attempted because of a wide, rough defect size. Therefore, fibrin glue was applied to the operated site in all cases. Although a wound drainage was inserted, it was stopped within the first 24 hours after the operation. No lumbar drainage was performed. Postoperatively, the patients should kept their heads in an elevated position and early ambulation and rehabilitation were encouraged. None of the patients developed complications related to CSF leaks during admission. Conclusion: The incidence of CSF leaks after surgery for cervical spinal trauma is relatively higher than that of cervical spinal stenosis. Therefore, one should expect the possibility of a dural tear and have a simple and effective management protocol for CSF leaks in trauma cases established.

• Clinical Endoscopy
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• 제56권6호
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• pp.693-705
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• 2023

Upper gastrointestinal postsurgical leaks are life-threatening conditions with high mortality rates and are one of the most feared complications of surgery. Leaks are challenging to manage and often require radiological, endoscopic, or surgical intervention. Steady advancements in interventional endoscopy in recent decades have allowed the development of new endoscopic devices and techniques that provide a more effective and minimally invasive therapeutic option compared to surgery. Since there is no consensus regarding the most appropriate therapeutic approach for managing postsurgical leaks, this review aimed to summarize the best available current data. Our discussion specifically focuses on leak diagnosis, treatment aims, comparative endoscopic technique outcomes, and combined multimodality approach efficacy.

• 한국인터넷방송통신학회논문지
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• 제9권1호
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• pp.67-74
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• 2009

네트워크 인프라의 확충과 인터넷 활용 증대로 한국과 일본에서 P2P프로그램 사용이 활성화되고 있으며 이를 통한 정보유출 문제가 증대되고 있다. 본 연구는 두 국가에서 P2P를 통해 유출되고 있는 자료들을 수집하여 심각성을 확인하였고, 어떤 대책이 수립되고 적용되었는가를 연구하였다. 또한 대책 적용 시기별 유출된 자료를 수집하여 대책의 실효성을 검증하였다. 두 국가 모두 개인정보 유출이 발생되고 있었지만, 특히 일본의 경우 개인정보 뿐만 아니라 기업, 행정기관, 군 등 광범위한 범위에서 많은 자료들이 유출되고 있음을 확인했다. 정보유출 대책으로 한국은 개인 및 P2P서비스 업체를 중심으로 대응방안이 시행되고 있으며, 일본은 각 기관별 업무지침, 조직관리, SW개발 및 보급, HW보급 등 다양한 방안을 시행하고 있다. 본 연구를 통해 일본이 한국보다 정보유출 문제가 심각하며, 이에 대한 대책도 잘 수립되고 적용되고 있음을 확인했다. 따라서 일본의 P2P프로그램을 통한 정보유출 대책을 타산지석으로 삼는다면 한국의 정보유출 문제를 미연에 방지할 수 있으리라 기대한다.

• Journal of Gastric Cancer
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• 제18권1호
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• pp.37-47
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• 2018

Purpose: The endoscopic management of a fully covered self-expandable metal stent (SEMS) has been suggested for the primary treatment of patients with anastomotic leaks after total gastrectomy. Embedded stents due to tissue ingrowth and migration are the main obstacles in endoscopic stent management. Materials and Methods: The effectiveness and safety of endoscopic management were evaluated for anastomotic leaks when using a benign fully covered SEMS with an anchoring thread and thick silicone covering the membrane to prevent stent embedding and migration. We retrospectively reviewed the data of 14 consecutive patients with gastric cancer and anastomotic leaks after total gastrectomy treated from January 2009 to December 2016. Results: The technical success rate of endoscopic stent replacement was 100%, and the rate of complete leaks closure was 85.7% (n=12). The mean size of leaks was 13.1 mm (range, 3-30 mm). The time interval from operation to stent replacement was 10.7 days (range, 3-35 days) and the interval from stent replacement to extraction was 32.3 days (range, 18-49 days). The complication rate was 14.1%, and included a single jejunal ulcer and delayed stricture at the site of leakage. No embedded stent or migration occurred. Two patients died due to progression of pneumonia and septic shock 2 weeks after stent replacement. Conclusions: A benign fully covered SEMS with an anchoring thread and thick membrane is an effective and safe stent in patients with anastomotic leaks after total gastrectomy. The novelty of this stent is that it provides complete prevention of stent migration and embedding, compared with conventional fully covered SEMS.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 춘계 학술논문 발표대회
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• pp.142-143
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• 2017

An analysis of the current water leak status of understand structure (underground parking lots, staircases, plumbing systems, water reservoirs, etc.) of multi-family housing in South Korea shows that water leaks are found from cracks in all areas of the underground structure caused by the degradation environment (water pressure by underground water, humidity, temperature, earth pressure, soil behaviour and vibration, etc.), which result in various problems, including mold, malodour, debonding of finishing materials, exfoliation, breakout, water leaks in electrical boxes, efflorescence, sedimentation of calcium hydroxide, decoloration, rusting, damages and pollution among others. Therefore, this study aims to analyse the current status of water leaks in underground structure and use the results as the basic data for developing a standard guideline for water leaks and maintenance by parts of the underground structure of multi-family housing.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 추계 학술논문 발표대회
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• pp.221-222
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• 2017

An analysis of the current water leak status of understand structure (underground parking lots, staircases, plumbing systems, water reservoirs, etc.) of multi-family housing in South Korea shows that water leaks are found from cracks in all areas of the underground structure caused by the degradation environment (water pressure by underground water, humidity, temperature, earth pressure, soil behaviour and vibration, etc.), which result in various problems, including mold, malodour, debonding of finishing materials, exfoliation, breakout, water leaks in electrical boxes, efflorescence, sedimentation of calcium hydroxide, decoloration, rusting, damages and pollution among others. Therefore, this study aims to analyse the current status of water leaks in underground structure and use the results as the basic data for developing a standard guideline for water leaks and maintenance by parts of the underground structure of multi-family housing.

• Journal of Trauma and Injury
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• 제27권3호
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• pp.89-93
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• 2014

Bile leaks are complications that are much more frequent after a high-grade liver injury than after a low-grade liver injury. In this report, we describe the management of bile leaks that were encountered after angiographic embolization in a 27-year-old man with a high-grade blunt liver injury. He had undergone an abdominal irrigation and drainage with a laparotomy on post-injury day (PID) 16 due to bile peritonitis and continuous bile leaks from percutaneous abdominal drainage. He required three percutaneous drainage procedures for a biloma and liver abscesses in hepatic segments 4, 5 and 8, as well as endoscopic retrograde cholangiopancreatography with biliary stent placement into the intrahepatic biloma via the common bile duct. We detected communication between the biloma and the bilateral intrahepatic duct by using a tubogram. Follow-up abdominal computed tomography on PID 47 showed partial thrombosis of the inferior vena cava at the suprahepatic level, and the patient received anticoagulation therapy with low molecular weight heparin and rivaroxaban. As symptomatic improvement was achieved by using conservative management, the percutaneous drains were removed and the patient was discharged on PID 82.