Which of the Following Sequence of Events Best Describes an Online

Multiple Choice

Which of the following sequence of events best describes an online intrusion?

A) Malware enters the device, and then opens a backdoor, which opens a communications link on the device that a hacker can exploit.
B) A backdoor is opened on the device locally, which allows malware to be loaded onto the device by a hacker.
C) A USB drive containing a trojan is inserted into a device, which opens a backdoor allowing a hacker access to the device.
D) None of the above.