O O Multiple Choice Which of the following sequence of events best describes an online intrusion? A. Malware enters the device, then opens a backdoor, leading to an open communications link on the device that a hacker can exploit. C. A USB drive containing a trojan is inserted into a device which opens a backdoor, allowing a hacker access to the device. O O B. A backdoor is opened on the device locally, which allows malware to be loaded onto the device by a hacker. D. None of the above