The correct answer isB - Unmerge the incidents to capture the missing details.
When incidents are merged in Cortex XSIAM, custom field values from the source (secondary) incident are not always automatically transferred to the destination (primary) incident. The recommended way to retrieve the missing custom incident field values is tounmergethe incidents. This action restores the original incidents, including all their individual fields and context, allowing analysts to access and capture the missing details.
"If incident field values are missing after a merge, unmerging incidents will restore the original context and custom field data from each incident." Document Reference:XSIAM Analyst ILT Lab Guide.pdf Page:Page 45 (Incident Handling section)

The correct answer isA - Initiate the endpoint isolate action to contain the threat.
For incidents indicating possible remote compromise or unauthorized task creation, the most effective initial response isendpoint isolation. This cuts off the endpoint's network access, preventing lateral movement and limiting attacker activity until further investigation and remediation.
"The endpoint isolate action is the primary containment step in incidents involving suspected remote compromise, halting network communication to reduce further risk." Document Reference:XSIAM Analyst ILT Lab Guide.pdf Page:Page 40 (Incident Handling/SOC section)