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Survey of Sybil Attacks in Networks
Published in Mohammad Ilyas, Sami S. Alwakeel, Mohammed M. Alwakeel, el-Hadi M. Aggoune, Sensor Networks for Sustainable Development, 2017
In online discussion forums, in order to cheat people on the Internet, for instance, to believe that a product is a good buy or that a particular investment plan has an extremely high return and low risk, a common trick is to use different fake online identities pretending to be different people. This is done to praise or create the illusion of support for the product [4]. In the same forum, different online entities that belong to the same person are referred as sockpuppets. Note that sockpuppet does not belong to Sybil attack, since online discussion forums are not peer-to-peer systems. However, because sockpuppets have several features similar to Sybil attacks, we want to mention them. First, both attacks are based on the usage of multiple identities belonging to the same person. Second, their success is related to the same assumption that each user is associated with one, and only one, identity. Third, they all break the reputation mechanism behind a given system. Last, for some distributed peer-to-peer systems, such as mobile social networks, there are social features and friendships associated with each identity; this also applies to an online discussion forum. Due to these similarities, the solution to one attack may help the design of the other.
Managing Users’ Behaviors on Open Content Crowdsourcing Platform
Published in Journal of Computer Information Systems, 2022
Cheuk Hang Au, Kevin K. W. Ho, Dickson K.W. Chiu
Different parties would like to utilize the potential of content crowdsourcing in different areas, such as in the context of enterprise Wiki and other internal crowdsourcing.5 In principle, content crowdsourcing platform hosts should engage the crowd in the hope of utilizing their power.6 However, upon reaching a significant size, more established management mechanisms are needed to ensure the content’s quantity and quality.7 Some users may be incentivized emotionally or financially to add disputed contents or even destroy the platform.8 This will eventually harm the platform’s integrity, reliability, and usability9 and may burden platform hosts. For example, in August 2015, the English Wikipedia community discovered 381 sockpuppet accounts operating a secretly paid editing ring known as the “Orangemoody editing of Wikipedia.”10,11