ToddyCat restrict access to compromised systems while they steal valuable data.
Documents outline the use of hardware hacking devices, including a malicious power bank designed to surreptitiously upload data into victims' systems
Group installs custom malware on routers to compromise firms
Microsoft still says only Outlook and Exchange Online were impacted
US State Department and the Commerce Department both affected
APT 27, APT 30, APT 31 and Gallium are said to be the perpetrators of the attacks
The company is now directing Nickel's traffic to its own servers
At least 30,000 organisations across the United States were compromised earlier this year through four security bugs in Microsoft Exchange server email software
Malaysian nationals allegedly helped Chinese hackers in their attempts to intrude into the networks of American firms