A

A company deploys antivirus, anti-malware, and firewalls that can be assumed to be functioning properly.

Which of the following is the MOST likely system vulnerability?

A.

Insider threat

B.

Worms

C.

Ransomware

D.

Open ports

E.

Two-person integrity.

A.

The most likely system vulnerability among the given options is an insider threat (Option A).

Explanation: While deploying antivirus, anti-malware, and firewalls can be an effective way to protect against external threats, they may not be effective against insider threats. Insider threats refer to malicious or unintentional actions taken by an organization's employees, contractors, or partners that can compromise the security of the organization's systems and data.

Insider threats can come in different forms, such as theft of data, installation of malware or unauthorized software, or accidental deletion of critical files. These threats can be particularly challenging to detect and prevent because insiders often have legitimate access to the organization's systems and data.

Worms (Option B) are a type of malware that spreads through networks and can cause harm to systems and data. However, if the company has deployed anti-malware software that is functioning properly, it is less likely to be vulnerable to worm attacks.

Ransomware (Option C) is another type of malware that can encrypt a user's files and demand a ransom to unlock them. While ransomware attacks can be devastating, they usually require some form of user interaction, such as clicking on a malicious link or downloading a file from an untrusted source. If the company has deployed antivirus software that is functioning properly, it is less likely to be vulnerable to ransomware attacks.

Open ports (Option D) refer to network ports that are open and can be used to communicate with a system. Open ports can be a vulnerability if they are not necessary and can be used to exploit the system. However, firewalls can be used to block unwanted traffic to open ports, and if the company has deployed firewalls that are functioning properly, it is less likely to be vulnerable to open port attacks.

Two-person integrity (Option E) is a security control that requires two individuals to be present for certain tasks, such as accessing critical systems or handling sensitive data. While two-person integrity can be an effective security control, it is not a vulnerability.

In summary, among the given options, insider threat (Option A) is the most likely system vulnerability, as it can be challenging to detect and prevent without additional security controls, such as user monitoring and access controls.