Abeer ElBahrawy | Coordinating in the Dark: the lives and deaths of Bitcoin Marketplaces скачать в хорошем качестве

Abeer ElBahrawy | Coordinating in the Dark: the lives and deaths of Bitcoin Marketplaces

On August 19-20, 2019 the CMSA hosted our fifth annual Conference on Big Data. The Conference featured many speakers from the Harvard community as well as scholars from across the globe, with talks focusing on computer science, statistics, math and physics, and economics. Speaker: Abeer ElBahrawy, City, University of London Title: Coordinating in the Dark: the lives and deaths of Bitcoin Marketplaces. Abstract: Dark markets are commercial websites which are accessible via darknets (e.g. Tor) and often specialize in selling drugs, weapons, and other illicit goods. Bitcoin is the standard currency for trading on dark markets. Recently, dark markets have seen a dramatic increase in their customer base and transaction volume. Multiple successful police raids and scams have shut down many of the largest dark markets. We analyze Bitcoin transactions network for 52 dark markets. We investigate the dynamics of 18 dark markets before and after dark market shutdowns. First, we show that users migrate quickly to other dark markets following shutdowns. Second, we describe the characteristics of migrant users. Finally, we study how migrant users coordinate on new dark markets following shutdowns. In this presentation, I will discuss these results in the context of our broader analysis of the Bitcoin ecosystem.