A security analyst is looking at the headers of a few emails that appear to be targeting all users at an organization:
Which of the following technologies would MOST likely be used to prevent this phishing attempt?
A . DNSSEC
B . DMARC
C . STP
D . S/IMAP
Answer: B
Explanation:
DMARC stands for Domain-based Message Authentication, Reporting and Conformance. It is an email authentication protocol that helps prevent spoofing and phishing attacks by verifying that the sender’s domain matches the domain in the email header. DMARC also provides a way for domain owners to specify how receivers should handle unauthenticated messages from their domain1
Reference: 1 What is DMARC? | DMARC.org
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