Which of the following is not typically a threat vector associated with SMS-based attacks?

SMS-delivered images are not typically considered a primary threat vector associated with SMS-based attacks. While it's possible for malicious content to be included in images sent via SMS, the primary threats in the context of SMS attacks often revolve around direct actions that can compromise user security or personal information.

For instance, SMS phishing links actively lure users into clicking on harmful links that can lead to credential theft or malware installation. SMS text message spoofing is another significant concern, where attackers can send messages that appear to come from trusted sources, manipulating recipients into providing sensitive information.

SMS account verification codes, while primarily legitimate, can also be exploited in social engineering attacks, where attackers may attempt to intercept these codes to gain unauthorized access to accounts. In contrast, SMS-delivered images do not inherently carry the same level of risk as they do not directly lead to user actions that could compromise security without further context or manipulation.