Under the guise of "marketing, promotion and customer prospecting", lists of sensitive information of participants in cryptocurrency industry events have been illegally sold, becoming a database coveted by scammers and malicious actors. These lists detail the full names, phone numbers, nationalities, positions, companies, and personal and business social media links of participants, which are often collected during the registration process for events at conferences or branch venues. Cointelegraph obtained a "sample" of the list from a seller via Telegram, including four lists from different events, each with about 60 to 100 participants and containing different data points. Most of the activities took place in the fall of 2024, and the participants came from many countries including Southeast Asia and India. This indicates the existence of an organized international blockchain event participant data trade.
In addition, there is a lot of similar information shared, which can greatly help social engineering scammers use malicious links and phishing attacks on people on the list to steal their crypto wallets. (Cointelegraph)