Academic research: The number of ransomware blackmail cases is on the rise

According to CoinDesk, academic research by the Austrian Institute of Technology and security company GoSecure said that the number of cryptocurrency blackmail cases is on the rise. Criminals use spam and botnet forces to post pictures and information to ask for bitcoin. It is reported that the criminal extortion process is fast, simple and profitable. By renting a botnet at a price of 10,000 US dollars per month, the extortionist can earn at least 130,000 US dollars.