Chinese hackers were able to mine hiddenly $2M worth cryptocurrency in 2 years. 1M devices were infected. This is reported by CoinDesk.
According to one local media, police in the Chinese city of Dalian arrested 20 employees of a computer firm who are suspected of illegally taking control of a large number of computers for illegal crypto-mining.
Hackers created a malicious program and built it into plug-ins for the Internet browser - for example, to improve the speed of the Internet - and promoted it through advertising, which was shown to 5 million users.
After the user clicked on such an advertisement and installed the plugin, his computer became infected. As a result, according to the police, malware was downloaded to more than 1 million computers, which for 2 years mined 26 million tokens of Digibyte, Decred and Siacoin.
In addition, hackers created a network of more than 100 agents to promote their illegal mining network-for example, through working relationships in the internet cafes.