During a recent penetration test, the tester discovers large amounts of data were exfiltrated over the course of 12 mont

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During a recent penetration test, the tester discovers largeamounts of data were exfiltrated over the course of 12 months viathe internet. The penetration tester stops the test to inform theclient of the findings Which of the following should be theclient's NEXT step to mitigate the issue''
A-Conduct a full vulnerability scan to identify possiblevulnerabilities
B-Perform containment on the critical servers and resources
C-Review the firewall and identify the source of the activeconnection
D-Disconnect the entire infrastructure from the internet