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CompTIA Security+ · CompTIA
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Data is being exfiltrated.
B. Data is being exfiltrated. A large volume of DNS queries to external systems during non-business hours can indicate that data is being exfiltrated. Attackers often use DNS queries to covertly extract data from compromised systems, as DNS traffic is less likely to be scrutinized compared to other types of network traffic.
Thank you for the description. That makes sense.