The internet and computer criminality is a part of a cybercrime which is a very wide and relatively inhomogeneous category of criminal offences. The master's thesis focuses on criminal offences against confidentiality, integrity and availability of computer data and computer systems. These cyber attacks can endanger the cyber security at the national level and inflict immeasurable damage. In the present day, a Cybersecurity Act is being prepared in the Czech Republic whose goal is to respond to these attacks. Master's thesis examines especially penal aspects of this law. Moreover, a large space in the thesis is devoted to the recently ratified Convention on Cybercrime. Besides the two above-mentioned legal norms the master's thesis arises from the Czech and foreign legal regulation and case law, for which it uses literature available in the Czech, English or German language. With regard to the chosen topic, it has been necessary to use also considerable amount of a non-legal literature. The whole work is divided into six chapters. The first chapter provides a brief introduction into the topic and also short explanations of the basic terms. Chapter two provides questions about legitimacy and beneficial effect of a state regulation in the cyberspace which are of a partially philosophical character....

Criminological and legal aspects of the ransomware phenomenon Abstract This diploma thesis deals with the current topic of cybercrime and focuses specifically on the phenomenon of ransomware on a scope unprecedented in Czech legal literature. Ransomware is a malicious code that interferes with the operation of a computer system, and later requires ransom for the victim to recover the access to the computer system and the data contained therein. Basic concepts necessary for the definition of ransomware (such as cyberspace, cybercrime, computer system, malicious code, cryptocurrency and darknet) are introduced and explained. The specificities of cybercrime and its development and current range in the Czech Republic are analysed. The main part of the text deals with the analysis of ransomware, starting with its history and leading to the possible future developments of ransomware. Different variants of ransomware are described such as false antivirus, police, locker and encryption ransomware. From a criminological point of view, the text focuses on the unique interaction of the perpetrator and the victim, which takes on surprising forms of customer support, answers to frequently asked questions and instructions for acquiring virtual currencies. Emphasis is placed on prevention efforts that can mitigate the...

This diploma thesis deals with cyber relation of the United States of America and the People's republic of China. The aim of this diploma thesis is to answer the following questions: What kind of cyber threat for the United States does China represent? How is China's cyber strategy characterised? How do USA react on this threat and what are the gaps in this reaction? The thesis is divided into four chapters. The first chapter deals with definition of cyberwarfare and its perception in Chinese context. The second chapter analyses USA - China relation and its implication for cyber security. The third chapter represents US reaction on Chinese cyber threat. The last chapter deals with the gaps in the reaction. Keywords USA, China, cyber threat, cyberwarfare, cyber espionage

The purpose of this thesis is to introduce the issue of cyber crime, a phenomenon which is gaining importance in recent years. The first chapter outlines the basic problem: Mass use of information and communications technologies may have downsides. Consequently, the reader learns briefly about development of computers, which resulted in the emergence of the Internet. Especially, how this short evolution affected the terminology regarding crimes related to information technology. The term "cyberspace", from which we derive the term "cyber crime", becomes crucial. This virtual world is not only a place of fun but unfortunately also full of malicious behavior. Further, the work deals with the specifics of cybercrime and its differences that distinguish it from other types of crime. The fifth chapter deals with the legal regulation, both domestic and international. It lists major legislation related to the cyber crime and is especially dedicated to analysis of the Criminal Code, the law on cyber security and the Convention on Cybercrime. Next comes the main section of the thesis dedicated to crime in cyberspace. It describes the most common malicious activities which occur in cyberspace. A table of individual crimes is included to ease orientation. Particular attention is paid to copyright violations...

The subject of this diploma thesis is the ransomware spread, which is currently one of the most prominent global cybernetic threats. Ransomware is malicious code that, when activated on a computer system, usually blocks access to that system or encrypts the data contained in it, which is then used to blackmail the user. This thesis deals with criminological and criminal aspects of this phenomenon. In its criminological part, this thesis deals with the issue of the etiology of the ransomware spread and its criminogenic factors, while examining, among other things, the applicability of cybercriminological theory named space transition theory to a given phenomenon. It also deals with the victimological aspect of the matter, listing the most fundamental factors influencing victimization, both in the case of widespread non-targeted ransomware attacks and in the case of specifically targeted attacks. It also examines the issue of the high latency of this phenomenon and cybercrime in general and the possibility of prevention, which it considers to be the best way to defend against a ransomware attack. In particular, it deals with the issue of ransomware attacks on hospitals and critical infrastructure, and also raises the issue of the increase in the number of attacks due to the COVID-19 pandemic. The...

Criminological aspects of cybercrime Abstract The thesis concerns the offenders and victims of cybercrime as the selected criminological aspects of cybercrime. The objective of the thesis was to particularly analyse and compare the criminological findings of the offenders and victims of cybercrime and discover and point out the specifics in comparison to the offenders and victims of the offline criminality. Both Czech and foreign literary sources were used for the purposes of this thesis. In the first part the basic terms which are used in this thesis are clarified - cybercrime, the offender and victim including the particularly vulnerable victims. The second part concerns the development of the image of the offender of cybercrime, his characteristics in comparison to the offenders of crimes committed out of cyberspace and his categorization. Particularly the attention was brought to the organized groups of criminals in the area of cybercrime and the motivation of the offender as one of the criminogenic factors. In the third part different victimological aspects of cybercrime including the impact of this kind of criminality on the particularly vulnerable victims are discussed. In relation to the latency of cybercrime the causes of this latency including the reasons for not reporting this kind of criminality...

This master thesis entitled Cybersecurity deals with cybersecuriy issue. The theoretical part defines basic concepts related to cybersecurity and cyber threats classification. The practical part deals with a case study regarding disputes between China and the US in cyberspace. The goal will be to test a hypothesis that China and the United States are at cyberwar with each other.

The purpose of my thesis is to analyse and focus on the very actual topic of the Internet and computer criminality. The reason I chose this topic for my research is growing development of technology resulting in the evolution of new types of crimes, which need to be regulated by the law. The thesis is composed of six chapters, each of them dealing with different aspects of the cybernetic criminality. Chapter one is introductory and mainly focuses on the definition of the basic terminology used in the thesis, like computer systems, data, computer crime, internet crime and most importantly cybercrime. Chapter two gives a brief historical background to the relationship between the evolution of the information and communication technology and the appearance of the cybernetic crime. Chapter three discusses on the specifics of the cybercrime by the means of description of the typical cybercriminal, his motives, and his victims and last but not least of the possible prevention measures. The last part of this chapter concentrates on problems resulting from the transnational nature of cybercrime, which creates jurisdictional issues. Chapter four is subdivided into three main parts and provides an outline of the relevant International legislation in the field of cybercrime. Part one deals with the main...

The aim of this Master´s Thesis is to introduce fraudulent schemes within organizations and suggest possible actions to prevent this unjust behaviour that negatively affects not only organizations themselves, but also society as a whole. Audit, which is described in the first chapter, plays a major part in preventing fraud. The evolution of audit is described there as well as its main divisions consisting of external, internal and forensic audit, which is important for the investigation of fraud. Second chapter describes fraud as itself, dividing it into external and, more common, internal fraud, which is divided into corruption, asset misappropriations and financial statement fraud. This chapter also contains cybercrime, which is increasingly relevant nowadays. Detailed fraud statistics put together profile of the typical fraudster. Third chapter describes some real fraud cases within business practice. It contains four fraud cases, namely those in companies Enron, Toshiba, Target and Czech corruption scandal concerning former politician David Rath.

Today, the phenomenon of cybercrime can no longer be considered something obscured or unknown to the general public. Yet the majority of general population is aware of only a fraction of the offenses committed in cyberspace. As a result, a substantial proportion of Internet users act in violation of valid legislation in cyberspace, whether they do so knowingly or not. Cybercrime cannot be considered less dangerous than other forms of crime. On the contrary, due to its availability, globality and possible distance of the offender from the crime itself, this kind of criminal behaviour is on the rise year by year and its effects are becoming more severe, mainly due to the dependence of today's society on information and communication technologies. The aim of this thesis is to provide an introduction to the cybernetic world crime and offer a general view of the various aspects of this criminal activity. The introduction of my thesis deals with detailed description of the basic terminology present throughout the whole thesis and contains a brief description of the history and origins of the computer and Internet. An essential part of my thesis is the presentation of the legislative framework in the field of cybercrime regulation. This section mentions the laws that apply in the cyberspace environment...