What does the term "zero day attack" refer to$?$

the amount of time remaining before the logic embedded within the malware releases its payload

an overly$-$hyped malware that ultimately fizzles in its attempted attack

malware targets a previously$-$unknown vulnerability, with no solution available

attacker has no previous knowledge about the organization targeted by the attack

Question $15$

$2$ pts

A virus that targets the portion of a hard drive devoted to loading a computer's operating system:

virus hoax

logic bomb

master boot sector

ransomware