Question 1
You recently joined a company that uses Google Security Operations (SecOps) with Applied Threat Intelligence enabled. You have alert fatigue from a recent red team exercise, and you want to reduce the amount of time spent sifting through noise. You need to filter out IoCs that you suspect were generated due to the exercise. What should you do?
- AOption A:
Ask Gemini to provide a list of IoCs from the red team exercise.
- BOption B:
Filter IoCs with an ingestion time that matches the time period of the red team exercise.
- COption C:
Navigate to the IOC Matches page. Identify and mute the IoCs from the red team exercise.
- DOption D:
Navigate to the IOC Matches page. Review IoCs with an Indicator Confidence Score (IC-Score) label > = 80%.
Show answer and explanation
Correct answer: C
The IOC Matches page is the central location in Google Security Operations (SecOps) for reviewing all IoCs that have been automatically correlated against your organization ' s UDM data. This page is populated by the Applied Threat Intelligence service, which includes feeds from Google, Mandiant, and VirusTotal.
When security exercises (like red teaming or penetration testing) are conducted, they often use known malicious tools or infrastructure that will correctly trigger IoC matches, creating " noise " and contributing to alert fatigue. The platform provides a specific function to manage this: muting .
An analyst can navigate to the IOC Matches page, use filters (such as time, as mentioned in Option B) to identify the specific IoCs associated with the red team exercise, and then select the Mute action for those IoCs. Muting is the correct operational procedure for suppressing known-benign or exercise-related IoCs. This action prevents them from appearing in the main view and contributing to noise, while preserving the historical record of the match. Option D is a prioritization technique, not a suppression one.
(Reference: Google Cloud documentation, " View IoCs using Applied Threat Intelligence " ; " View alerts and IoCs " ; " Mute or unmute IoC " )
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