Which of the following is not an example of malicious code?
A. Trojan horse
B. worm
C. virus
D. spy gear**
D. spy gear
To determine which of the options is not an example of malicious code, let's go through each choice and explain what it is:
A. Trojan horse: This is a type of malicious code that is disguised as a legitimate program or file. It tricks users into unknowingly executing it, which then gives attackers unauthorized access to the system.
B. Worm: A worm is a self-replicating program that spreads across a network without requiring any user action. It can exploit vulnerabilities and consume system resources, but it does not usually modify or infect files.
C. Virus: A virus is a type of malicious code that replicates and attaches itself to files or programs. Viruses can spread by infecting other files or programs and can cause damage to the system or data.
D. Spy gear: Spy gear is not typically associated with malicious code. Spy gear refers to electronic devices or software used for surveillance purposes, generally without the consent or knowledge of the subject being monitored. While it may raise privacy concerns, it is not specifically considered malware or malicious code.
Therefore, the correct answer is D. spy gear, as it is not an example of malicious code.