The US government has disrupted a network of routers that were being used by the Russia-linked threat group APT28 to conceal malicious cyber activities. 

"These crimes included vast spear-phishing and similar credential harvesting campaigns against targets of intelligence interest to the Russian government, such as US and foreign governments and military, security, and corporate organisations," said the US Department of Justice (DoJ) in a statement.

APT28, tracked by...