To mitigate the risk of sensitive data being exfiltrated from the environment, the IT manager should implement a Data Loss Prevention (DLP) solution. DLP monitors and controls the movement of sensitive data, ensuring that unauthorized transfers are blocked and potential data breaches are prevented.
XDR (Extended Detection and Response) is useful for threat detection across multiple environments but doesn't specifically address data exfiltration.
SPF (Sender Policy Framework) helps prevent email spoofing, not data exfiltration.
DMARC (Domain-based Message Authentication, Reporting & Conformance) also addresses email security and spoofing, not data exfiltration.