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Free CompTIA CySA+ CS0-003 Practice Question

During routine monitoring of network traffic, you notice an unusual spike in outbound traffic on port 25 from a device within your organization that doesn't typically send emails. Despite this anomaly, email services appear to be functioning normally for all users. What is the MOST likely explanation for this behavior?

  • Scheduled backup over SMTP

  • Compromised system sending out spam

  • User sending bulk emails legitimately

  • Regular email service misconfiguration

This question's topic:
CompTIA CySA+ CS0-003 / 
Security Operations
Your Score:
Security Operations
Vulnerability Management
Incident Response and Management
Reporting and Communication