Answer: Botnet
Step-by-step explanation:
Botnet is the process when a hacker user uses multiple guest computer to crack a password. Basically, hackers use botnet for performing the distributed denial of services attack in the network.
It also steal the data and allowed attacker to approach its connection and access its device.
Botnet word is the combination of robot and network and botnet can be controlled by using the command and control software.