985 resultados para Payment Security


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As an emerging payment method, mobile payment technology is perceived to be a secure and effective substitute of traditional debit/credit card payment. Although several reports and scholars claimed that mobile payment technology would become a major future payment method, consumers rather caught on this trend slowly, and little is known about key determinants of consumers’ acceptance of mobile payment. To close that gap, the current study extended the classic Technology Acceptance Model by adding four additional predictors that are relevant to hospitality industry. The study results suggested that compatibility with lifestyle was the strongest predictor of consumers’ intention to adopt mobile payment technology in restaurants, followed by perceived usefulness, subjective norm, security, and previous experience with mobile payment. Important theoretical and practical implications were provided based on our findings.

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L’époque où il n'existait qu'un choix restreint de modes de paiement est à présent révolue. En effet, de l'apparition de la monnaie fiduciaire aux trente glorieuses, ils n’avaient que très peu évolué. Or, depuis quelques décennies, nous assistons à l’apparition de nombreux moyens de paiement, tous plus différents les uns des autres. Notre présente étude a non seulement pour objectif d’en confronter les principaux en vue d’identifier le plus adéquat face à une situation donnée, mais aussi et surtout de discuter de l’anonymat que ces derniers procurent ou non. Pour ce faire, nous avons d’abord présenté chacun de ces moyens tout en en définissant les fonctionnements et les technologies. Par la suite, une comparaison par l'entremise d'une analyse indépendante a été réalisée sur la base d’éléments précis tels que la protection de la vie privée ou encore les propriétés ACID. Des critères omme la confiance des utilisateurs (sécurité) et les attentes qu'ont les institutions financières vis-à-vis de ces derniers ont aussi été considérés. Et enfin, trois méthodes de paiement qui sont en réalité des approches-solutions pour pallier aux problèmes liés à l’anonymat que présentent certains principaux moyens de paiement connus, ont été présentées à leur tour. Ainsi, le premier système de paiement proposé est axé sur les comptes bancaires anonymes, tandis que le second est, lui inspiré du système des jetons; Si bien qu’une combinaison de ces deux approches a conduit à une troisième, afin d’en regrouper les avantages.

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Este estudo visa perceber quais os principais determinantes da adopção e recomendação da tecnologia de pagamentos móveis. Para atingir este objectivo, foi desenvolvido um modelo de pesquisa que combinou os modelos de adopção unified theory of acceptance and use of technology 2 (UTAUT2) e diffusions on innovations (DOI), juntamente com a variável perceived technology security (PTS). Foi realizado um questionário online, tendo sido obtidas 301 respostas válidas. Os dados recolhidos foram analisados utilizando a técnica de structured equation modeling (SEM), de forma a testar empiricamente o modelo e pesquisa. As principais conclusões retiradas são que os principais factores, com efeitos directos e indirectos, para a adopção e recomendação da tecnologia de pagamentos móveis são compatibility, perceived technology security, performance expectations, innovativeness e social influence. As conclusões deste estudo fornecem informações úteis às partes interessadas na tecnologia de pagamentos móveis.

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The future of paying in the age of digitalization is a topic that includes varied visions. This master’s thesis explores images of the future of paying in the Single Euro Payment Area (SEPA) up to 2020 and 2025 through the views of experts specialized in paying. This study was commissioned by a credit management company in order to obtain more detailed information about the future of paying. Specifically, this thesis investigates what could be the most used payment methods in the future, what items could work as a medium of exchange in 2020 and how will they evolve towards the year 2025. Changing consumer behavior, trends connected to payment methods, security and private issues of new cashless payment methods were also part of this study. In the empirical part of the study the experts’ ideas about probable and preferable future images of paying were investigated through a two-round Disaggregative Delphi method. The questionnaire included numeric statements and open questions. Three alternative future images were created with the help of cluster analysis: “Unsurprising Future”, “Technology Driven Future” and “The Age of the Customer”. The plausible images had similarities and differences, which were reflected to the previous studies in the literature review. The study’s findings were formed based on the images of futures’ similarities and to the open questions answers that were received from the questionnaire. The main conclusion of the study was that development of technology will unify and diversify SEPA; the trend in 2020 seems to be towards more cashless payment methods but their usage depends on the countries’ financial possibilities and customer preferences. Mobile payments, cards and cash will be the main payment methods but the banks will have competitors from outside the financial sector. Wearable payment methods and NFC technology are seen as widely growing trends but subcutaneous payment devices will likely keep their niche position until 2025. In the meantime, security and private issues are seen to increase because of identity thefts and various frauds. Simultaneously, privacy will lose its meaning to younger consumers who are used to sharing their transaction and personal data with third parties in order to get access to attractive services. Easier access to consumers’ transaction data will probably open the door for hackers and cause new risks in paying processes. There exist many roads to future, and this study was not an attempt to give any complete answers about it even if some plausible assumptions about the future’s course were provided.

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A model of overlapping generations in continuous time is composed. IndividuaIs pass through two distinct time periods during their life times. During the first period, they work, save and have a death probability equal to zero. During the second, from the periods T after birth, their probability of death changes to p and then they retire. Capital stock and the stationary state in come are calculated for two situations: in the first, people live from their accumulated capital after retirementj in the second, they live from a state transfer payment through income taxo To simplify matters, in this preliminary version, it is supposed that there is no population growth and that the instantaneous elasticity substitution of consumption is unitary.

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On cover: For administrative use only.

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Mode of access: Internet.

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Tables.

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For e-commerce to be successful, an efficient e-payment system is the key. The use of formal payment systems also enhances the ability to execute and manage monetary policies, which is essential for a country’s financial sector. Although Nigeria is a regional leader, the usage of e-Payments is still very low despite its many benefits and also attempts by the financial authorities. This therefore calls for an urgent need to investigate the factors that affect individual’s intention to adopt e-payment in Nigeria so that steps can be fashioned out to improve the situation. A survey was conducted to get individual perceptions of e-payments through the use of questionnaires designed based on the theoretical model developed. The results showed that awareness, knowledge of benefits, ease of use, reliability, trust and security, acceptability, accessibility and social influence are the main factors that influence individuals’ intention to adopt e-payments.

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This research involves the design, development, and theoretical demonstration of models resulting in integrated misbehavior resolution protocols for ad hoc networked devices. Game theory was used to analyze strategic interaction among independent devices with conflicting interests. Packet forwarding at the routing layer of autonomous ad hoc networks was investigated. Unlike existing reputation based or payment schemes, this model is based on repeated interactions. To enforce cooperation, a community enforcement mechanism was used, whereby selfish nodes that drop packets were punished not only by the victim, but also by all nodes in the network. Then, a stochastic packet forwarding game strategy was introduced. Our solution relaxed the uniform traffic demand that was pervasive in other works. To address the concerns of imperfect private monitoring in resource aware ad hoc networks, a belief-free equilibrium scheme was developed that reduces the impact of noise in cooperation. This scheme also eliminated the need to infer the private history of other nodes. Moreover, it simplified the computation of an optimal strategy. The belief-free approach reduced the node overhead and was easily tractable. Hence it made the system operation feasible. Motivated by the versatile nature of evolutionary game theory, the assumption of a rational node is relaxed, leading to the development of a framework for mitigating routing selfishness and misbehavior in Multi hop networks. This is accomplished by setting nodes to play a fixed strategy rather than independently choosing a rational strategy. A range of simulations was carried out that showed improved cooperation between selfish nodes when compared to older results. Cooperation among ad hoc nodes can also protect a network from malicious attacks. In the absence of a central trusted entity, many security mechanisms and privacy protections require cooperation among ad hoc nodes to protect a network from malicious attacks. Therefore, using game theory and evolutionary game theory, a mathematical framework has been developed that explores trust mechanisms to achieve security in the network. This framework is one of the first steps towards the synthesis of an integrated solution that demonstrates that security solely depends on the initial trust level that nodes have for each other.^

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To describe the clinical history of a child with aggressive behavior and recurring death-theme speech, and report the experience of the team of authors, who proposed an alternative to medication through the establishment of a protection network and the inter-sector implementation of the circle of security concept. A 5-year-old child has a violent and aggressive behavior at the day-care. The child was diagnosed by the healthcare center with depressive disorder and behavioral disorder, and was medicated with sertraline and risperidone. Side effects were observed, and the medications were discontinued. Despite several actions, such as talks, teamwork, psychological and psychiatric follow-up, the child's behavior remained unchanged. A unique therapeutic project was developed by Universidade Estadual de Campinas' Medical School students in order to establish a connection between the entities responsible for the child's care (daycare center, healthcare center, and family). Thus, the team was able to develop a basic care protection network. The implementation of the inter-sector circle of security, as well as the communication and cooperation among the teams, produced very favorable results in this case. This initiative was shown to be a feasible and effective alternative to the use of medication for this child.

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Universidade Estadual de Campinas . Faculdade de Educação Física

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Power system real time security assessment is one of the fundamental modules of the electricity markets. Typically, when a contingency occurs, it is required that security assessment and enhancement module shall be ready for action within about 20 minutes’ time to meet the real time requirement. The recent California black out again highlighted the importance of system security. This paper proposed an approach for power system security assessment and enhancement based on the information provided from the pre-defined system parameter space. The proposed scheme opens up an efficient way for real time security assessment and enhancement in a competitive electricity market for single contingency case