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Security Threats for the Czech Republic in View of Public - June 2021
Spurný, Martin
In November 2021, respondents had to assess security threats related to selected groups in the Czech Republic and they were also expressing views on threats by war, epidemics, natural disasters, economic crisis or resource crisis. These two questions were amended with an open question trying to find out, which countries represent a security threat for the Czech Republic. The survey also focused on expectations concerning the future of the personal life of citizens, the future of the Czech society and the future of the whole humankind.
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The Complexity of Security Threats in Urban Areas: The Case of Johannesburg.
Sanjoh, Charles ; Střítecký, Vít (advisor) ; Svitková, Katarína (referee)
Cities today have become a playground for man-made security threats. From terrorism, drug abuse, and different forms of physical violence that impedes the smooth functioning of the activities of those living within the city spaces. Considering the present day violence and insecurity in our cities, it is vital not only to embark on preventive measures, but also to learn how to cope with and adapt to them. Since it would be an illusion to think of eliminating violence, resilience becomes an important aspect, a gateway to move on with our daily activities without fear and with greater hope for a better future. It is in this respect that I decided in this thesis to talk about resilience within our municipalities with a special focus on the city of Johannesburg in South Africa.
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Thematization of Security Issue in Election Campaign: Election to Chamber of Deputies of the Parliament of the Czech Republic 2017
Rendla, Michal ; Křeček, Jan (advisor) ; Nečas, Vlastimil (referee)
Abstrakt_aj The thesis deals with the issue of security in the pre-election campaign to the Chamber of Deputies of the Parliament of the Czech Republic 2017, specifically in the election programmes of relevant political parties. In the theoretical part of the thesis is first discussed security, its concept, and basic security terminology. Afterward, the socio-constructivist Copenhagen school's securitization theory is presented, which provides also a suitable analytical tool, as well as election programmes, their position in the pre-election campaign and relevance for this paper. The analytical part of the thesis is divided into two levels. Using a quantitative content analysis of programmes, based on the method of the Comparative Manifesto research group, although heavily modified for the purposes of the work, the thematic content of security is mapped, the representation of specific themes across the programmes, as well as the amount of space and, hence, the attention devoted by individual parties to security topics. The analysis found that the dominant security issues in the programmes of the observed parties were Army and Defense, Migration, Migration Crisis and Asylum Policy, and finally Internal Order and Security. The second level of the content analysis is of qualitative nature and through the lens...
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Information and Cyber Threats in 2019
Bača, Jonatán ; MSc, Michal Mezera (referee) ; Sedlák, Petr (advisor)
Diploma thesis focuses on information and cyber threats in 2019. It comprises theoretical basis for better understanding of the issue. Afterward the thesis describes the analysis of the current situation which combined several analyses primarily aimed on Czech companies. In the last part draft measures is created which contain predictions and preventive actions and recommendations for companies.
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Analysis of information leakage from optical transmission system
Šimon, Václav ; Horváth, Tomáš (referee) ; Münster, Petr (advisor)
This bachelor thesis deals with the structure of an optical transmission system. It focuses mainly on the transmission part of the system. It describes its parts and the functioning of the components used. It also deals with the risks of information leakage at various levels of the system (backbone networks, distribution and access networks, optical fiber). The practical part examines the issue of 3 possible risks. Firstly is measured the effect of unauthorized connection of a splitter to the optical path, then the eavesdropping in dense wavelength division multiplexing networks and the last measurement deals with the eavesdropping of the upstream signal in GPON access networks.
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Anti-Drone Perimeter Protection
Janík, Roman ; Dvořák, Michal (referee) ; Drahanský, Martin (advisor)
Developement of drone technology brings opportunities for many fields of human activity, but simultaneously brings security threats. A need to effectively face these threats arises. In this work is described the problematics and state-of-the-art methods for object detection in a video captured by moving camera. A system for detecting and locating a drone or a flock of drones has been proposed. Algorithm for detection is based on convolutional neural network, specifically on SSD algorithm. The convolutional neural network was trained on self-made dataset. The system was implemented using OpenCV library with possible algorithm acceleration on GPU using OpenCL. Created solution was tested on video.
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Anti-Drone Perimeter Protection
Janík, Roman ; Dvořák, Michal (referee) ; Drahanský, Martin (advisor)
Developement of drone technology brings opportunities for many fields of human activity, but simultaneously brings security threats. A need to effectively face these threats arises. In this work, problematics and state-of-the-art methods for object detection in a video captured by moving camera. Further I proposed a system for a drone or a flock of drones detection and localization. Algorithm for detection is based on convolutional neural network, specifically on SSD algorithm. I implemented the system with library OpenCV with possible acceleration of algorithm with GPU via OpenCL. I tested the created solution on both a video and a video camera output.
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Security Threats for the Czech Republic in View of Public - November 2018
Červenka, Jan
In November 2018, respondents had to assess security threats related to selected groups in the Czech Republic and they were also expressing views on threats by war, epidemics, natural disasters, economic crisis or resource crisis. These two questions were amended with an open question trying to find out, which countries represent a security threat for the Czech Republic. The survey also focused on expectations concerning the future of the personal life of citizens, the future of the Czech society and the future of the whole humankind.
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Thematization of Security Issue in Election Campaign: Election to Chamber of Deputies of the Parliament of the Czech Republic 2017
Rendla, Michal ; Křeček, Jan (advisor) ; Nečas, Vlastimil (referee)
Abstrakt_aj The thesis deals with the issue of security in the pre-election campaign to the Chamber of Deputies of the Parliament of the Czech Republic 2017, specifically in the election programmes of relevant political parties. In the theoretical part of the thesis is first discussed security, its concept, and basic security terminology. Afterward, the socio-constructivist Copenhagen school's securitization theory is presented, which provides also a suitable analytical tool, as well as election programmes, their position in the pre-election campaign and relevance for this paper. The analytical part of the thesis is divided into two levels. Using a quantitative content analysis of programmes, based on the method of the Comparative Manifesto research group, although heavily modified for the purposes of the work, the thematic content of security is mapped, the representation of specific themes across the programmes, as well as the amount of space and, hence, the attention devoted by individual parties to security topics. The analysis found that the dominant security issues in the programmes of the observed parties were Army and Defense, Migration, Migration Crisis and Asylum Policy, and finally Internal Order and Security. The second level of the content analysis is of qualitative nature and through the lens...
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Security Risks in Passive Optical Networks
Šimoník, Jan ; Jeřábek, Jan (referee) ; Horváth, Tomáš (advisor)
This diploma thesis deals with the historical development of passive optical networks, according to the standards that was defined by International Telecommunication Union (APON, BPON, GPON, XG-PON and NG-PON). Further, the thesis describes the security of passive optical networks, but also a security threats which the deployment and use of passive optical technology carry. In the introductory chapters of this thesis the passive optical networks are described. The following is a description of the standards of passive optical networks in terms of their historical development. The next part is dedicated to the security of passive optical networks and possible security threats. In conclusion a description of the practical part of this thesis is given -- rack assembly, which will serve for future testing. The basic configuration of the optical line terminations that are fitted in the rack is also described. The last part of this diploma thesis is dedicated to the testing of selected security risks, which was described in the theoretical part of this thesis.
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