The answer is enriching URLs, detonating attachments in a sandbox, and collecting mailbox search counts. These actions are appropriate for the first automated phase of a SOAR playbook for suspected phishing because they focus on enrichment and triage without taking destructive action, aligning with the containment trade-off phase where the goal is to balance rapid response with forensic integrity. Enriching URLs via threat intelligence APIs, detonating attachments in a sandbox, and collecting mailbox search counts provide critical threat intelligence while preserving evidence and avoiding premature containment. On the CompTIA CySA+ CS0-003 exam, this tests your understanding of SOAR playbook design and the principle of non-destructive automated enrichment before confirmation. A common trap is selecting containment actions like quarantining emails or blocking IPs too early, which destroys evidence. Remember the mnemonic "E-D-C" for the first phase: Enrich, Detonate, Collect.
CS0-003 Security Operations Practice Question
This CS0-003 practice question tests your understanding of security operations. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: sOAR playbooks automate incident response workflows.. 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.
A SOC wants a SOAR playbook for suspected phishing that reduces analyst workload but avoids destructive action before confirmation. Which actions are appropriate for the first automated phase? In the containment trade-off phase, Which response balances containment with evidence preservation?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enrich URLs, detonate attachments in a sandbox, and collect mailbox search counts
Option D is correct because the first automated phase of a SOAR playbook for suspected phishing should focus on enrichment and triage without taking destructive action. Enriching URLs (e.g., via VirusTotal or URL scan APIs), detonating attachments in a sandbox (e.g., using Cuckoo or FireEye), and collecting mailbox search counts (e.g., via EWS or Graph API) provide critical threat intelligence while preserving evidence and avoiding premature containment. This aligns with the containment trade-off phase, where the goal is to balance rapid response with forensic integrity.
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that immediate destructive actions (like deletion or account disablement) are appropriate for phishing containment, when in fact the correct approach is to use non-destructive enrichment and soft containment to preserve evidence and avoid false positives.
Trap categories for this question
Similar concept trap
Similarity does not prove benign status or complete containment.
Detailed technical explanation
How to think about this question
In SOAR playbooks, the first automated phase typically leverages APIs like VirusTotal for URL reputation, sandboxing engines (e.g., Joe Sandbox) for dynamic analysis of attachments, and Microsoft Graph API or Exchange Web Services (EWS) to query mailbox counts for indicators of compromise (IOCs). The containment trade-off phase often uses 'soft containment' actions like moving emails to a quarantine folder (not deleting) or blocking the sender at the email gateway (e.g., using MTA-level rules) while retaining copies in a forensic archive. Real-world scenarios, such as a spear-phishing campaign targeting executives, require balancing immediate blocking with preserving email headers and attachments for incident response.
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 CS0-003 question in full detail.
The correct answer is: Enrich URLs, detonate attachments in a sandbox, and collect mailbox search counts — Option D is correct because the first automated phase of a SOAR playbook for suspected phishing should focus on enrichment and triage without taking destructive action. Enriching URLs (e.g., via VirusTotal or URL scan APIs), detonating attachments in a sandbox (e.g., using Cuckoo or FireEye), and collecting mailbox search counts (e.g., via EWS or Graph API) provide critical threat intelligence while preserving evidence and avoiding premature containment. This aligns with the containment trade-off phase, where the goal is to balance rapid response with forensic integrity.
What should I do if I get this CS0-003 question wrong?
Review sOAR playbooks automate incident response workflows., then practise related CS0-003 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A SOC wants a SOAR playbook for suspected phishing that reduces analyst workload but avoids destructive action before confirmation. Which actions are appropriate for the first automated phase? In the evidence source phase, Which evidence source best supports or refutes the detection?
hard
A.Close all similar alerts as duplicates
B.Disable the reporting user's account immediately
C.Automatically delete all messages from the sender across all mailboxes
✓ D.Enrich URLs, detonate attachments in a sandbox, and collect mailbox search counts
Why D: Option D is correct because it aligns with the SOAR playbook's goal of reducing analyst workload through automated enrichment and triage without taking destructive action. Enriching URLs and detonating attachments in a sandbox provides threat intelligence, while collecting mailbox search counts helps quantify the incident's scope. This non-destructive evidence gathering allows analysts to make informed decisions before any containment or remediation steps.
Variation 2. A SOC wants a SOAR playbook for suspected phishing that reduces analyst workload but avoids destructive action before confirmation. Which actions are appropriate for the first automated phase? In the alert triage phase, Which action gives the analyst the clearest next triage step?
hard
A.Disable the reporting user's account immediately
✓ B.Enrich URLs, detonate attachments in a sandbox, and collect mailbox search counts
C.Close all similar alerts as duplicates
D.Automatically delete all messages from the sender across all mailboxes
Why B: Option B is correct because it describes non-destructive, automated enrichment actions that gather evidence (URL reputation, sandbox analysis, mailbox search counts) without altering systems. This aligns with SOAR best practices for the initial triage phase, where the goal is to reduce analyst workload by providing contextual data while avoiding destructive actions until confirmation of a true positive.
Last reviewed: Jun 11, 2026
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