The Dark Web is notorious for being a major distribution channel of harmful content as well
as unlawful goods. Perpetrators have also used cryptocurrencies to conduct illicit financial …

We investigate what we call the" Bitcoin Generator Scam"(BGS), a simple system in which
the scammers promise to" generate" new bitcoins using the ones that were sent to them. A …

Exploiting the anonymous mechanism of Bitcoin, ransomware activities demanding ransom
in bitcoins have become rampant in recent years. Several existing studies quantify the …

As COVID-19 has been spreading across the world since early 2020, a growing number of
malicious campaigns are capitalizing the topic of COVID-19. COVID-19 themed …

Cryptocurrencies represent one of the most attractive markets for financial speculation. As a
consequence, they have attracted unprecedented attention on social media. Besides …

Bitcoin, the famous peer-to-peer, decentralized electronic currency system, allows users to
benefit from pseudonymity, by generating an arbitrary number of aliases (or addresses) to …

Transactions on the darknet are notoriously difficult to examine. Prior criminological
research has generally used web scraping and qualitative text analysis to examine illegal …

Ransomware can prevent a user from accessing a device and its files until a ransom is paid
to the attacker, most frequently in Bitcoin. With over 500 known ransomware families, it has …

Over the past few years, there has been a growth in activity, public knowledge, and
awareness of cryptocurrencies and related blockchain technology. As the industry has …

Cybercriminals often leverage Bitcoin for their illicit activities. In this work, we propose back-
and-forth exploration, a novel automated Bitcoin transaction tracing technique to identify …