We are witnessing an annual exponential increase in investment in cryptocurrencies. On the other hand, the law of virtual currencies is still at the beginning of development throughout Europe as well as in the Slovak Republic. The legal regulation of cryptocurrencies interferes with various "standard" areas of law, whether it is AML, tax regulations or the application of the analogy of legis within unregulated contractual relations. The law office L/R/P advokáti assisted its clients in significant investments in virtual currencies and institutionalized crypto tools, related administrative and regulatory proceedings, as well as in the overall setting of contractual, corporate and business matters of the projects. We are familiar with the legal regulation of virtual currencies not only in the Slovak Republic but also within the entire European Union and we have practical experiences in the operation of virtual currencies and crypto-exchanges across Europe.