diff --git a/.github/ioc-candidates/review/osv-28443915853.json b/.github/ioc-candidates/review/osv-28443915853.json
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+[
+  {
+    "ecosystem": "npm",
+    "ioc_type": "package_name",
+    "value": "anthropic-toolkit",
+    "confidence": "high",
+    "reason": "Malicious code in anthropic-toolkit (npm)",
+    "source": "https://osv.dev/vulnerability/MAL-2026-6673",
+    "first_seen": "2026-06-30",
+    "suggested_action": "block",
+    "promote_to": "watch_only",
+    "blacklist_id": "MAL-2026-6673",
+    "affected_versions": [
+      "0.1.0",
+      "0.1.1",
+      "0.2.0",
+      "0.2.1",
+      "0.3.0",
+      "0.3.1",
+      "0.4.0",
+      "0.4.1",
+      "0.5.0",
+      "0.5.1",
+      "0.6.0",
+      "0.7.0",
+      "0.8.0",
+      "0.9.0",
+      "1.0.0",
+      "1.0.1",
+      "1.1.0",
+      "1.1.1",
+      "1.2.0",
+      "1.2.1",
+      "1.3.0"
+    ],
+    "action": "BLOCK",
+    "severity": "CRITICAL",
+    "notes": "OSV-confirmed malicious package (MAL-2026-6673). Reported by: amazon-inspector, Amazon Inspector. Review affected versions before promoting to AS-008."
+  }
+]