The diploma thesis is focused on the issue of connective cars and the types of threats that can occur and how to protect against them. The general part described the general model of the car. In the next part of the work, templates were created in the Microsoft Threat Modeling Tool with threats and countermeasures to them.

In recent years, there has been a significant increase in insider threats within organisations and these have caused massive losses and damages. Due to the fact that email communications are a crucial part of the modern-day working environment, many insider threats exist within organisations’ email infrastructure. It is a well-known fact that employees not only dispatch ‘business-as-usual’ emails, but also emails that are completely unrelated to company business, perhaps even involving malicious activity and unethical behaviour. Such insider threat activities are mostly caused by employees who have legitimate access to their organisation’s resources, servers, and non-public data. However, these same employees abuse their privileges for personal gain or even to inflict malicious damage on the employer. The problem is that the high volume and velocity of email communication make it virtually impossible to minimise the risk of insider threat activities, by using techniques such as filtering and rule-based systems. The research presented in this dissertation suggests strategies to minimise the risk of insider threat via email systems by employing a machine-learning-based approach. This is done by studying and creating categories of malicious behaviours posed by insiders, and mapping these to phrases that would appear in email communications. Furthermore, a large email dataset is classified according to behavioural characteristics of employees. Machine learning algorithms are employed to identify commonly occurring insider threats and to group the occurrences according to insider threat classifications. / Dissertation (MSc (Computer Science))--University of Pretoria, 2020. / Computer Science / MSc (Computer Science) / Unrestricted

abstract: Blalock’s (1967) minority threat perspective is one of the most empirically investigated theories of crime control in criminological literature. A large body of research has tested this perspective and established a link between minority context and increased criminal justice controls. The perceived threat mechanisms hypothesized to facilitate this link, however, have received relatively scant attention. In addition, no multidimensional scale of perceived minority threat has been developed. These oversights have significantly impeded the advancement of research testing the empirical validity and generalizability of Blalock’s premises across racial and ethnic groups. Against this backdrop, this dissertation extends prior work by conducting three separate but interrelated studies. The first study focuses on the development and validation of a multidimensional Perceived Latino Threat Scale (PLTS). The second study investigates how the PLTS can inform the relationship between Latino context and punitive border control sentiment. The third and final study assesses the psychometrics of another multidimensional scale of perceived threat—the Perceived Black Threat Scale (PBTS), and examines the structural invariance and distinctness of the PBTS and PLTS. Using data collected from two college samples, I relied on a variety of different methods across the three empirical studies, including confirmatory factor analyses, bivariate and partial correlation analyses, and ordinary least squares regression. Overall, the findings suggest that both the PLTS and PBTS are multidimensional constructs that are structurally invariant and empirically distinct. In addition, perceived Latino threat significantly influenced punitive border control sentiment, but did not surface as a mediating mechanism linking ethnic context to immigration attitudes. Furthermore, whereas objective Latino population context did not demonstrate significant effects on either perceived Latino threat or punitive border control sentiment, the results emphasized perceived Latino context as a key moderator in the relationship between perceived Latino threat and punitive border control sentiment. Thus, the findings support the multidimensionality of perceived threat, as well as the hypothesized link between perceived threat and punitive controls, but raises key concerns about the generalizability of Blalock’s perspective to explain the threat-control process of Latinos. Implications for theory and research are discussed. / Dissertation/Thesis / Doctoral Dissertation Criminology and Criminal Justice 2020

Title: Terrorism and cyberterrorism as threats for the present Objectives: Describe the principle, history and typology of terrorism. Approach and describe the problematics of cyberterrorism. Analyze and compare available terrorist attacks which happened from 11th September 2001 to 19th February 2020. Methods: The theoretical part was developed on the basis of study, analysis and research from Czech and foreign literature about problematics of terrorism and cyberterrorism. The practical pard included the collection of electronic and printed information about terrorists attacks which were further analysed and compared using five factors, which were: the year of terrorist attack, method of execution, country that tooked place of the attack, number of injured and number of victims. Results: The result of this diplama thesis is the description of the principle, history and typology of terrorism, description of problematics of cyberterrorism and analysis of terrorist attacks which happened from 11th September 2001 fo 19th February 2020. Keywords: Terrorism, terrorists, attack, cyberterrorism, threat.

The master thesis analyses the perception of Information Warfare and Russia among German politicians. By using the Qualitative Content Analysis by Schreier, speeches given in the German Bundestag relating to Information Warfare, and Russia were analyzed from January 2015 until December 2018. Using International Relations (IR) theories and political psychological approaches, a theoretical framework was developed in order to determine factors which have an impact on the perception of politicians. The thesis divides this perception into three categories - friend, partner, and threat. Each category is analyzed in depth resulting in support for two of the four hypotheses. The thesis demonstrates that it is not only the political orientation, but also economic interests which determine if a state and its warfare tactics are perceived as a danger. Moreover, the deductive part of the analysis reveals that Russia's behavior which can be perceived as aggressive, irrational, and power-seeking, also determines whether the regime is perceived as threatening. Information Warfare per se is no issue of concern in the Bundestag. However, information warfare tactics such as disinformation campaigns, the spread of fake news and propaganda, and Russia's meddling in western politics are perceived as a danger to...

Aggressive behaviour can be defined as actions that are believed and intended to cause harm to another individual that does not desire to be the target of such actions. Different situations can warrant aggressive behaviour, such as when an individual is posed with a threat. Aggressive behaviour is one of the ways individuals can deal with threats arising from their environments, and furthermore, aggressive behaviour can also be used to deal with social threats that arise from the interaction between two members of the same species. Aggressive behaviour is correlated with higher emotional arousal, and individuals that illustrate aggressive tendencies should be more sensitive to arousal when confronted with a social threat. This thesis acts upon this notion by hypothesizing that individuals who score higher on a tendency for aggression measurements should exhibit higher emotional arousal when exposed to a cue of social threat. Cues of social threats are thought to be induced by exposing the participant to either an angry face or a face with a high facial width to height ratio. The emotional response is measured with electroencephalography, more specifically looking at the late positive potential. No support for the hypothesis was found between high and low aggression groups. The facial width to height ratios proposed nature of being a cue of social threat becomes contested as the results were conflicting regarding the robustness of the facial width to height ratio’s effect. Even if there were no statistically significant differences found between the two groups, it might not be subject for dismissal as the sample population could be considered a low aggression population overall.

We outline four connections between xenophobia and punitiveness toward criminals in a national sample of Americans. First, among self-identified whites xenophobia is more predictive of punitiveness than specific forms of racial animus. Second, xenophobia and punitiveness are strongly connected among whites, but are only moderately and weakly related among black and Hispanic Americans, respectively. Third, among whites substantial proportions of the variance between sociodemographic, political, and religious predictors of punitiveness are mediated by levels of xenophobia. Finally, xenophobia is the strongest overall predictor of punitiveness among whites. Overall, xenophobia is an essential aspect of understanding public punitiveness, particularly among whites.

The research aimed to identify the level of threat currently experienced by Afrikaners, and their attitudes towards policies of affirmative action and the beneficiaries of these policies. Integrated threat theory was used in conjunction with social identity theory to identify current attitudes, and to investigate whether different attitudes existed between groups within the Afrikaner group. Data was collected from a representative sample via questionnaires. Research findings show that Afrikaners feel extremely threatened. Afrikaner negativity is focused directly on the policies of affirmative action rather than the beneficiaries of these policies. It was evident that Afrikaner males feel more threatened than Afrikaner females. Young Afrikaners attitudes are consistently the most negative of all Afrikaner groups; this was unexpected as this group of individuals has spent the majority of their young lives in a democratic South Africa. It is evident that a lot of work is still required to insure that the injustices of the past be adequately addressed. It is of critical importance that affirmative action be implemented with consideration to all groups of people and to understand the effect it has on those groups being negatively affected by it. All South Africans need to be responsible and recognise that the manner in which policy is implemented, has far greater influence than just the expected outcome of such policies. Copyright / Dissertation (MBA)--University of Pretoria, 2010. / Gordon Institute of Business Science (GIBS) / unrestricted

The purpose of this thesis is to elucidate which issues that are portrayed as external threats during a disarmament process versus an armament process in Sweden by studying two Defence Committee reports. To understand what is portrayed as external threats, an analysis of both reports and a comparison between them have been made. The research question for this thesis is: How are external threats portrayed in Defence Committee reports during a disarmament process versus an armament process? A qualitative text analysis is made with Carol Bacchi’s WPR method combined with the theory of securitization to analyse the material. The material consists of two Defence Committee reports, one from 2003 and one from 2019 to represent disarmament and rearmament. Previous research of Sweden’s disarmament process has shown that Russia is the main objective affecting Swedish defence policy. However, this thesis concludes that representation of the stability of the world order is affected by the United States being portrayed as reliable in case of conflict which affects the Defence Committee’s representation of external threats.

This diploma thesis deals with the relationship between the security and media discourse. Securitization, a model originally developed by the Copenhagen school, is here understood as a long term process which depends not only on a one-time designation of a certain phenomenon as a security threat, but it is co-constructed by many factors and agents. The media represents the world; it both reflects and forms its picture Critical discourse analysis enables the examination of the construction of security threats in the particular texts plus it also involves contextual factors in which it expands and deepens the insight into the particular issue. This work attempts to show through which means and in what respects Islam is or is not represented as a security threat in a chosen part of Czech online news discourse. It especially emphasizes the role of news values, routines and dominant ideology in securitizing processes.