7. 1927-1949
8.The Red Army
The correct answer is known as "bot net".
A bot net is described as a cluster of Internet-connected devices, which may include smart phones, personal desktops, servers that are infected by a common malware, hackers pose this threat, since hackers are capable of hacking through internet-connected devices and may hack anyone without the owner's knowledge.
They do good things for the communtiy and pay taxes and obey the law which is good, and they set good examples.