Wyniki wyszukiwania - BazTech

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Trust Framework on Exploitation of Humans as the Weakest Link in Cybersecurity

Daudi Morice

Applied Cybersecurity & Internet Governance

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2023

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Vol. 2, No. 1

1--26

EN

T he significance of cybersecurity is increasing in our daily digital lives. The reason for this rise is that human interactions take place in computer-mediated environments, or cyberspace, where physical cues from face-to-face interactions are either absent or very minimal. Computer users are becoming increasingly susceptible to cyberattacks as a result of human interactions in cyberspace. Understanding how cybercriminals exploit the human trust, the weakest link in cybersecurity is relevant because cybercriminals focus on attacking the human psychology of trust rather than technical-based controls. To this end, the present paper develops a trust framework on exploitation of humans as the weakest link in cybersecurity. The framework is established by linking the human psychology of trust and techniques used by cybercriminals in deceiving and manipulating users of computer systems. The framework is validated by demonstrating its application using a case study employing real data. Findings show that cybercriminals exploit human trust based on trust development processes and bases of trust, either creating (falsified) expectations or a relationship history to lure the victim in. Furthermore, it is revealed that technical-based controls cannot provide effective safeguards to prevent manipulation of the human psychology of trust.

2

Critical Temperature Evaluation for a Steel Frame with Joint Stiffness Decreasing in Fire

Maślak M., Pazdanowski M., Snela M.

Czasopismo Inżynierii Lądowej, Środowiska i Architektury / Journal of Civil Engineering, Environment and Architecture

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2018

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z. 65, nr 2

91--101

EN

A procedure to determine the critical temperature of a selected steel frame bearing structure is presented and discussed. This temperature, in case of fully developed fire, when the temperature of the exhaust gasses enveloping the structural members is equalized within the whole fire zone, may be considered as an impartial measure of safety. The obtained result does not depend on the heating progress but only on the static scheme and the load level in the considered structure. The quantitative and qualitative evaluation of the influence the joint stiffness decreasing in fire exerts on the resultant critical temperature constitutes the basic objective of the authors. It has been shown, that proceeding according to the recommended computational procedure does not necessarily result in an estimate fully unambiguous in interpretation. The critical temperature specified in a global mode, for the whole considered frame, is usually associated with a specific component of such frame, interpreted as the so called “weakest link”. Thus local loss of bearing capacity in such element is in this approach equivalent to the total destruction of the whole bearing structure. Indication, which of the components present in the considered frame should be treated as the critical one, because of its behaviour under fire conditions, seems to be a key to the forecast safety level warranted to the users of the structure. The authors show, that this association changes depending on the selected computational method, and this in turn substantially limits the reliability of the obtained estimate.

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Wyznaczanie najsłabszego ogniwa w systemie Common Rail

Młynarski S., Kaczor G.

Pojazdy Szynowe

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2014

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Nr 1

49--52

PL

Kształtowanie niezawodności złożonych obiektów technicznych jakimi są układy wtryskowe powinno odbywać się zarówno na etapie projektowania, wytwarzania jak i ich eksploatacji technicznej. Szczególne znaczenie ma ten ostatni proces, gdzie ocena wpływu czynników zewnętrznych na prawdopodobieństwo poprawnej pracy wymaga poznania przynajmniej podstawowych wskaźników niezawodności. Zasadniczym celem niniejszego artykułu jest wyznaczenie najsłabszego ogniwa systemu Common Rail, wykorzystując dane empiryczne oraz dyskretną symulację komputerową.

EN

Shaping the reliability of the complex technical objects which are the injection systems should be both during the stage of designing, producing and during their technical operation. The particular importance has the last process, where the assessment of impact of the external factors on the probability of the correct operation requires the knowledge of basic indicators of reliability. Determination of the weakest link of Common Rail system using the empirical data and the discrete computer simulation is the main aim of this article.

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New static strength distribution family for fibrous material

Paramonov Y., Kleinhofs M., Andersons J.

Zeszyty Naukowe Politechniki Świętokrzyskiej. Nauki Techniczne

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2006

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Z. 1 [II Międzynarodowa Konferencja Naukowe Aspekty Bezpilotowych Aparatów Latających]

313--324

EN

Distribution of static strength of fibrous material is investigated. Two new tests are offered. First is offered for preliminary dataset processing for distribution with location and scale parameter, the other for specific W-L dilemma testing (Weibull against Lognormal distribution). And a new family of weakest-link models based on the assumption of a two-stage failure process is derived also. In the first stage initiation (either instant or step by step) of some flaws in one or several links, and in the second stage fracture of the weakest link take place.

PL

Przedstawiono wyniki analiz rozkładu naprężeń statycznych w materiałach włóknistych. Przedstawiono dwa nowe testy. Pierwszy przedstawia wstępny zbiór przetwarzanych danych rozkładu, położenia i skali parametru drugi specyficzny W-L dylemat (Weibull against Lognormal distributian). Ponadto przedstawiono nową rodzinę modeli najsłabszych powiązań opartych na założeniu dwuetapowego procesu zniszczenia. W pierwszym etapie inicjowane są przepływy w jednym łub kilku połączeniach, w drugim etapie niszczone są najsłabsze połączenia.