Which of the following is a common sign of a compromised system?

• A. Frequent software updates
• B. Unexpected pop-ups or emails
• C. Increased internet speed
• D. New software installations

Answer: (B)

A common sign of a compromised system is unexpected pop-ups or emails. When a system is compromised, it often indicates the presence of malware or adware that can generate intrusive advertisements, redirect web traffic, or spam the user with unsolicited email. These unsolicited pop-ups or emails may lead to further security risks, such as phishing attempts or the installation of additional malicious software. Recognizing these signs is crucial for taking timely action to mitigate any potential damage.

Frequent software updates are generally a sign that a system is being maintained and kept secure, as software vendors routinely release patches and updates to address vulnerabilities. Increased internet speed typically signifies a healthy network connection and doesn’t indicate compromise. New software installations can occur for legitimate reasons, such as upgrades or the addition of necessary applications, although they can also suggest unauthorized software may have been installed if they appear unexpectedly. However, unexpected pop-ups or emails are more directly associated with compromise and are therefore a clearer indicator of a security issue.