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Securing such a configuration is quite complex. The core technology of blockchain platforms is strongly secure as it satisfies properties like immutable, distributed and public. However, in various use-case scenarios of the platforms, dApps, the system being essentially a network of systems, suffers from classic threats. In this talk, we shall illustrate various types of attacks in blockchain systems, security challenges, and threat modelling for blockchain systems. Further, we discuss a systematic way of analysing security and vulnerabilities in a blockchain system. </div> <div class="row lecture__section"> <h2>About this Lecture</h2> <span> <strong>Number of Slides: </strong> 60</span><br/> <span> <strong>Duration: </strong> 60 minutes </span><br/> <span> <strong>Languages Available: </strong> English</span><br/> <span> <strong>Last Updated: </strong> <span id="lecDate"></span> </span> </div> <div class="row lecture__section"> <h2>Request this Lecture</h2> <p>To request this particular lecture, please complete this <a href="https://services.acm.org/public/speakers/request_lecture.cfm?lecture_id=15247" target="_blank">online form.</a> </p> </div> <div class="row lecture__section"> <h2>Request a Tour</h2> <p>To request a tour with this speaker, please complete this <a href="https://services.acm.org/public/speakers/request_tour.cfm?lecturer_id=17694" target="_blank">online form.</a> </p> <p>All requests will be sent to ACM headquarters for 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