Initial SOC memory POC implementation

evaluation/datasets/normalized_kb/KB-O365-MFA-FATIGUE.json

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+{
+  "id": "KB-O365-MFA-FATIGUE",
+  "memory_type": "knowledge",
+  "doc_type": "kb",
+  "scenario": "o365_suspicious_login",
+  "title": "MFA Fatigue Detection Notes",
+  "abstract": "Patterns for identifying MFA fatigue / push bombing during account compromise attempts.",
+  "key_points": [
+    "Repeated MFA prompts preceding one successful prompt is suspicious.",
+    "User-reported prompt fatigue is strong supporting evidence.",
+    "MFA fatigue is often coupled with credential theft rather than password spray alone."
+  ],
+  "investigation_guidance": [
+    "Review MFA event counts and timing.",
+    "Check if the user acknowledged unexpected prompts.",
+    "Look for subsequent session hijacking or mailbox abuse."
+  ],
+  "decision_points": [
+    "Prompt flood plus user denial usually warrants immediate containment."
+  ],
+  "related_refs": {
+    "playbooks": [
+      "PB-O365-LOGIN-001"
+    ],
+    "cases": []
+  },
+  "source_path": "/home/tom/soc_memory_poc/evaluation/datasets/mock_kb/kb/KB-O365-MFA-FATIGUE.json",
+  "tags": [
+    "kb",
+    "o365",
+    "mfa-fatigue"
+  ]
+}