The answer is to capture and save the email headers and message content. This is the most appropriate action because email headers contain the forensic goldmine needed to trace the attack: the originating IP address, the mail servers the message traversed, and authentication results like SPF, DKIM, and DMARC. Preserving the full message content alongside these headers ensures the complete attack vector is documented without altering the original evidence. On the Security+ SY0-701 exam, this question tests your understanding of forensic procedures and incident response—specifically that forwarding or deleting the email destroys critical metadata and violates the chain of custody. A common trap is thinking you should forward the email to IT, but that strips the original headers. Remember the memory tip: "Headers hold the history, so save the whole story."
SY0-701 Security Operations Practice Question
This SY0-701 practice question tests your understanding of security operations. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
After a phishing incident, the security team wants to preserve evidence for later review. Which action is most appropriate?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Capture and save the email headers and message content
Option B is correct because preserving the email headers and message content is essential for forensic analysis. Email headers contain routing information, including the originating IP address, authentication results (SPF, DKIM, DMARC), and timestamps, which are critical for tracing the source of the phishing attack and understanding the attack vector. Deleting or forwarding the email would destroy this evidence, compromising the investigation.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Have the user delete the phishing email to avoid further exposure
Why it's wrong here
Deleting the email removes evidence that could help determine the source and impact.
✓
Capture and save the email headers and message content
Why this is correct
Headers and message content help investigators trace delivery paths and identify indicators of compromise.
Related concept
Read the scenario before looking for a memorised answer.
✗
Forward the email to every employee as a warning
Why it's wrong here
Wide forwarding can spread the threat or confuse users without preserving forensic evidence.
✗
Change the user's office seat assignment immediately
Why it's wrong here
Relocating the user does not preserve evidence and does not address the incident itself.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think deleting or forwarding the email is a quick fix to prevent further harm, but the exam emphasizes that evidence preservation (via capture of headers and content) is the first priority in incident response, not containment or notification.
Trap categories for this question
Similar concept trap
Wide forwarding can spread the threat or confuse users without preserving forensic evidence.
Detailed technical explanation
How to think about this question
Email headers follow RFC 5322 and include fields like Received, Authentication-Results, and Message-ID. In a phishing investigation, the 'Received' chain reveals the path the email took, and SPF/DKIM/DMARC results indicate whether the sender domain was spoofed. Tools like 'eml' file extraction or 'mailx' can capture the full message, including MIME parts, which may contain hidden URLs or attachments. A real-world scenario might involve a spear-phishing email with a malicious macro; preserving the original .eml file allows sandbox analysis without altering the payload.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An employee at a financial services firm receives an email that appears to come from the IT helpdesk, asking them to reset their password via a link. The link leads to a convincing fake portal that harvests credentials. Security teams use phishing simulations and security-awareness training to reduce this attack vector. Questions like this test whether you can identify social engineering techniques and appropriate controls.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SY0-701 question in full detail.
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Capture and save the email headers and message content — Option B is correct because preserving the email headers and message content is essential for forensic analysis. Email headers contain routing information, including the originating IP address, authentication results (SPF, DKIM, DMARC), and timestamps, which are critical for tracing the source of the phishing attack and understanding the attack vector. Deleting or forwarding the email would destroy this evidence, compromising the investigation.
What should I do if I get this SY0-701 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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