scholarly journals Typosquatting for Fun and Profit: Cross-Country Analysis of Pop-Up Scam

Author(s):  
Tobias Dam ◽  
Lukas Daniel Klausner ◽  
Sebastian Schrittwieser

Today, many different types of scams can be found on the internet. Online criminals are always finding new creative ways to trick internet users, be it in the form of lottery scams, downloading scam apps for smartphones or fake gambling websites. This paper presents a large-scale study on one particular delivery method of online scam: pop-up scam on typosquatting domains. Typosquatting describes the concept of registering domains which are very similar to existing ones while deliberately containing common typing errors; these domains are then used to trick online users while under the belief of browsing the intended website. Pop-up scam uses JavaScript alert boxes to present a message which attracts the user’s attention very effectively, as they are a blocking user interface element. Our study among typosquatting domains derived from the Majestic Million list utilising an Austrian IP address revealed on 1219 distinct typosquatting URLs a total of 2577 pop-up messages, out of which 1538 were malicious. Approximately a third of those distinct URLs (403) were targeted and displayed pop-up messages to one specific HTTP user agent only. Based on our scans, we present an in-depth analysis as well as a detailed classification of different targeting parameters (user agent and language) which triggered varying kinds of pop-up scams. Furthermore, we expound the differences of current pop-up scam characteristics in comparison with a previous scan performed in late 2018 and examine the use of IDN homograph attacks as well as the application of message localisation using additional scans with IP addresses from the United States and Japan.

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Shashank Shekhar ◽  
Anas M Saad ◽  
Toshiaki Isogai ◽  
Mohamed M Gad ◽  
Keerat Ahuja ◽  
...  

Introduction: Even though atrial fibrillation (AF) is present in >30% of patients with aortic stenosis (AS), it is not typically included in the decision-making algorithm for the timing or need for aortic valve replacement (AVR), either by transcatheter (TAVR) or surgical (SAVR) approaches. Large scale data on how AF affects outcomes of AS patients remain scarce. Methods: From the Nationwide Readmissions Database (NRD), we retrospectively identified AS patients aged ≥18years, with and without AF admitted between January and June in 2016 and 2017 (to allow for a six month follow up), using the International Classification of Diseases-10 th revision codes. Multivariable logistic regression was performed to examine the predictors of in-hospital mortality during index hospitalization. In-hospital complications and 6 month in-hospital mortality during any readmission after being discharged alive were compared in patients with and without AF, for patients undergoing TAVR, SAVR or no-AVR. Results: We identified 403,089 AS patients, of which 41% had AF. Patients with AF were older (median age in years: 83 vs. 79) and were more frequently females (52% vs. 48%; p<0.001). Table summarizes outcomes of AS patients with and without AF. TAVR in patients with AF was associated with higher in-hospital mortality and follow-up mortality as compared to patients without AF. Although AF did not influence in-hospital mortality in SAVR population, follow-up mortality was also significantly higher after SAVR in patients with AF compared to patients without AF. For patients not undergoing AVR, in-hospital and follow-up mortality were higher in AF population compared to no AF and was higher than patients undergoing AVR (Table). Conclusions: AF is associated with worse outcomes in patients with AS irrespective of treatment (TAVR, SAVR or no-AVR). More studies are needed to understand the implications of AF in AS population and whether earlier treatment of AS in patients with AF can improve outcomes.


2020 ◽  
Vol 29 (1) ◽  
pp. 53-68
Author(s):  
Ewelina Nyske

Spiritual awakenings tend to be associated with the religious rapture regardless of the spiritual path one decides to follow and are defined as temporary experiences whose main characteristic is the intensified sense of unity with the sacred. The nature of these particular phenomena gives rise to the need to carry out the in-depth analysis of the human responsiveness pattern in relation to the external stimuli, especially within the context of a religious experience. The limbic system, believed to be the headquarters of human emotions, tends to be easily activated, both verbally and non-verbally, and such activation may influence human behavior to a great extent. The principal objective of this paper is to provide a detailed classification of awakening experiences as well as to focus on the role of the amygdala and hippocampus in the production of particular religious experiences such as spiritual visions, speaking in the tongues or astral projections.


2005 ◽  
Vol 3 ◽  
pp. 47-77
Author(s):  
Tomáš Kučera

A review of literature referring to floristic, vegetation and habitat diversity in Bohemian Massif has resulted to a revision and detailed classification of ecological phenomena. Each phenomenon represents an open non-hierarchical system of lithological, hydrological, topoclimatic and biotic aberrations, that differ from common features of surrounded “zonal“ environment. Two main groups of ecological phenomena have been distinguished: (i) large-scale ecological geo-phenomena originated by prominent lithological factors, and (ii) meso-scale ecological topo-phenomena produced by local action of hydrology, topoclimate, and air currents. With regard to the first group, the following geo-phenomena play a particular role in the Central European vegetation: (a) sandstone, (b) limestone and dolomite (karst phenomenon), (c) marl (flysch and loess), (d) neo-volcanic, and (e) serpentinite phenomena. With regard to the latter group, the following meso-scale phenomena contribute to the diversity of habitats in landscape scenery: (f) river (or valley), (g) summit, (h) frost hollow, and (i) scree (and glacial cirque) phenomena. The “insular“ feature of the ecological phenomena in vegetation cover is expressed mainly by the occurrence of treeless ecosystems, such as swamps, bogs, marshes, steppes, rock faces and scree ecosystems, etc. Relatively higher species richness can indicate most of ecological phenomena (they should be detected by the distance from the regional species-area curve), and by the presence of rare plant species, especially by the relic and/or endemic species, which survive on extreme habitats due to the lower competition of prevailing dominant woody or graminoid species.


2020 ◽  
Vol 1 (1) ◽  
pp. 8-19
Author(s):  
N. Letunovska ◽  
A. Kwilinski ◽  
B. Kaminska

The authors pay attention to bibliographic analysis in the field of health tourism. The primary purpose of the study is to find out which countries’ works predominate in scientific circles, and which nationalities have the most significant influence in the scientific community in terms of the number and content of their research. In particular, they do an in-depth analysis of researches in health tourism marketing. The authors put forward hypotheses about the growing popularity of marketing research in this category, which they confirmed during their investigation. Besides, the study concluded that most articles in health tourism marketing are analytical, systematizing data from secondary sources. The authors constructed a visualized representation of the relationships of important concepts, namely the services market, tourism market, health, and medical tourism. The total number of articles and cited articles in the authoritative world scientometric databases Scopus and Web of Science have been performed. TOP authors and countries that make the most considerable contribution to the number of studies of the selected category are selected. The main keywords used in articles on health tourism are systematized, among which it is possible to single out a cluster of purely marketing concepts. The authors constructed a PRISMA chart to cut off less relevant articles and select those related to the marketing aspects of the health services market. The inferences made it possible to form a detailed classification of health tourism by identifying key categories and the role of components of the tourist offer in them. The author’s research will be useful for further research in health tourism, as it provides a basis for some of the works already analyzed and describes the tools for bibliographic analysis of literature sources. Keywords: health tourism market, marketing in health tourism, medical tourism, preventive tourism, PRISMA diagram.


1991 ◽  
Vol 18 (2-3) ◽  
pp. 321-334 ◽  
Author(s):  
Graham Shorrocks

Summary Alexander John Ellis (1814–1890) occupies an important position within the history of phonetics and that of the spelling reform movement. In this article, it is argued that Ellis’s standing as a dialectologist might profitably be reassessed. All too often in the past, Ellis’s work in the field of dialectology has been adversely criticized, underestimated or even completely ignored. Yet Ellis’s dialectological work was pioneering in many ways: he produced the first large-scale survey of English dialects, rejecting printed sources and using the direct method in part; invented an intricate system of phonetic notation (the palaeotype); produced a detailed classification of the English dialects; and illustrated his classification by means of two summary maps complete with isoglosses. A number of scholars have reported in recent years that the results of their investigations accord well with Ellis’s findings. These facts are sufficient to warrant a reassessment of Ellis’s position in the history of English dialectology, and, more generally, within the history of linguistic geography as a whole.


Author(s):  
Shailendra Kumar Singh ◽  
Manoj Kumar Sachan

The rapid growth of internet facilities has increased the comments, posts, blogs, feedback, etc., on a large scale on social networking sites. These social media data are available in an unstructured form, which includes images, text, and videos. The processing of these data is difficult, but some sentiment analysis, information retrieval, and recommender systems are used to process these unstructured data. To extract the opinion and sentiment of internet users from their written social media text, a sentiment analysis system is required to develop, which can work on both monolingual and bilingual phonetic text. Therefore, a sentiment analysis (SA) system is developed, which performs well on different domain datasets. The system performance is tested on four different datasets and achieved better accuracy of 3% on social media datasets, 1.5% on movie reviews, 1.35% on Amazon product reviews, and 4.56% on large Amazon product reviews than the state-of-art techniques. Also, the stemmer (StemVerb) for verbs of the English language is proposed, which improves the SA system's performance.


2014 ◽  
Vol 670-671 ◽  
pp. 1493-1498
Author(s):  
Xin Fu Li ◽  
Bo Liu ◽  
Xue Dong Tian

Separable words have important applications in many fields such as Chinese information processing, Chinese-English translation, teaching Chinese as a foreign language. There are about five thousand separable words distribute in the corpus of Chinese, and the word frequency is greater in the novel, so the study on identification of separable words is significant. This paper selects the higher discrete frequency of verb-object separable words as the object of the study, by examining the manifestation of extended components in different separable words and giving summary and detailed classification of the extended components on the large-scale corpus, a new approach is designed based on the words segmentation and the structure type of extended component. According to the experiments of identification mark to separable words of verb-object type, the average recall is 89.54% and the average precision is 87.43% in open test. The experimental results show that the method is effective.


1956 ◽  
Vol 88 (7) ◽  
pp. 372-476 ◽  
Author(s):  
Eugene Munroe

Two things make it difficult to write an account of Canada in relation to insect life: the vast size and varied nature of the country and the relatively small amount of work that has been done on its insects. Those familiar with the intensely worked biota of Western Europe or even of many parts of the United States will find this description meagre indeed. In general, Canadian environments are known better than the insects that inhabit them. In only a few orders of insects is our knowledge even of species taxonomy reasonably adequate; for all orders our knowledge of geographical distribution in Canada is sketchy or fragmentary and our knowledge of ecological relations almost non-existent. Serious collecting and study of insects has been carried out in only a few centres. The National Collection itself has been developed actively only since 1919, and on a large scale only in the last few years. There is no close network of amateur and professional workers such as exists in better-studied countries. What I have tried to do, therefore, is to give a brief geographic account of the main environmental factors as seen by an entomologist, to give a short outline of the possible history of the fauna, to give examples of the main distributional types, and to provide a tentative classification of entomological regions, with notes on some characteristic insects of each. The main feature that will undoubtedly be impressed on the reader, as it has been impressed on me, is our ignorance and the need for further investigation of the insect fauna.


2021 ◽  
Vol 8 ◽  
Author(s):  
Haipeng Liu ◽  
Aleksandra Wingert ◽  
Jian'an Wang ◽  
Jucheng Zhang ◽  
Xinhong Wang ◽  
...  

Background: Atherosclerotic plaques are the major cause of coronary artery disease (CAD). Currently, computed tomography (CT) is the most commonly applied imaging technique in the diagnosis of CAD. However, the accurate extraction of coronary plaque geometry from CT images is still challenging.Summary of Review: In this review, we focused on the methods in recent studies on the CT-based coronary plaque extraction. According to the dimension of plaque extraction method, the studies were categorized into two-dimensional (2D) and three-dimensional (3D) ones. In each category, the studies were analyzed in terms of data, methods, and evaluation. We summarized the merits and limitations of current methods, as well as the future directions for efficient and accurate extraction of coronary plaques using CT imaging.Conclusion: The methodological innovations are important for more accurate CT-based assessment of coronary plaques in clinical applications. The large-scale studies, de-blooming algorithms, more standardized datasets, and more detailed classification of non-calcified plaques could improve the accuracy of coronary plaque extraction from CT images. More multidimensional geometric parameters can be derived from the 3D geometry of coronary plaques. Additionally, machine learning and automatic 3D reconstruction could improve the efficiency of coronary plaque extraction in future studies.


2005 ◽  
Vol 3 ◽  
pp. 47-77
Author(s):  
Tomáš Kučera

A review of literature referring to floristic, vegetation and habitat diversity in Bohemian Massif has resulted to a revision and detailed classification of ecological phenomena. Each phenomenon represents an open non-hierarchical system of lithological, hydrological, topoclimatic and biotic aberrations, that differ from common features of surrounded “zonal“ environment. Two main groups of ecological phenomena have been distinguished: (i) large-scale ecological geo-phenomena originated by prominent lithological factors, and (ii) meso-scale ecological topo-phenomena produced by local action of hydrology, topoclimate, and air currents. With regard to the first group, the following geo-phenomena play a particular role in the Central European vegetation: (a) sandstone, (b) limestone and dolomite (karst phenomenon), (c) marl (flysch and loess), (d) neo-volcanic, and (e) serpentinite phenomena. With regard to the latter group, the following meso-scale phenomena contribute to the diversity of habitats in landscape scenery: (f) river (or valley), (g) summit, (h) frost hollow, and (i) scree (and glacial cirque) phenomena. The “insular“ feature of the ecological phenomena in vegetation cover is expressed mainly by the occurrence of treeless ecosystems, such as swamps, bogs, marshes, steppes, rock faces and scree ecosystems, etc. Relatively higher species richness can indicate most of ecological phenomena (they should be detected by the distance from the regional species-area curve), and by the presence of rare plant species, especially by the relic and/or endemic species, which survive on extreme habitats due to the lower competition of prevailing dominant woody or graminoid species.


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