Cryp­tocur­rency

Cryp­tocur­ren­cies are dig­ital means of exchange/payment or assets using cryp­to­graphic tech­niques to ensure a pay­ment system is secure. When sys­tems are being paral­ysed by mal­ware, cyber-crim­i­nals usu­ally demand a cryp­tocur­rency pay­ment (e. g. bit­coins) to make tracing impossible.