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Suggested Enhancement for Detection: Cisco Secure Firewall - Potential Data Exfiltration #3998

@Jannik1228

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@Jannik1228

The detection generates false positives because it uses total transferred bytes (InitiatorBytes + ResponderBytes) and does not distinguish between uploads and downloads, causing large legitimate downloads to be flagged as exfiltration. As a result, normal activities like software updates or file downloads can trigger alerts, reducing detection accuracy and increasing noise. This should be improved by focusing on outbound traffic (InitiatorBytes)

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