In recent years, the authorities have dismantled several encrypted phone providers. These providers stored millions of messages about covert activities that were overtly exchanged between criminals. This type of communication offers a unique insight into serious organized crime and the people involved. Based on one such intercepted encrypted phone network, called PGP-Safe, we carried out a social network analysis on the Dutch-speaking synthetic drug market. Three findings stand out. Firstly, three-quarters of all accounts (N=4,158) are interconnected in a giant component, resulting in a criminal small-world effect. Secondly, the network appears to be robust. As a consequence, the removal of central accounts will hardly have any impact on the network as a whole. Thirdly, the majority of the accounts within the synthetic drug market is involved in poly-drug trafficking. The Dutch synthetic drug market is much more closely intertwined with other drug markets than is commonly known.

In order to advance our understanding of digital drug markets on social media, this article examines the trustworthiness of cocaine dealers on Telegram Messenger. Based on an exploratory netnography, we illustrate that digital dealers on Telegram Messenger use a number of sales tactics to attract potential customers, emphasizing the quality of the goods and service and (competitive) pricing strategies. These sales tactics include various signals that seem intended to appear as trustworthy as possible to potential customers. Seen from the perspective of signaling theory, our study highlights the ambiguity of these signals that, depending on the online observer, could both signal trustworthiness and untrustworthiness.