diff --git a/apps/web/src/App.tsx b/apps/web/src/App.tsx
index 8f54c0b..8ef877e 100644
--- a/apps/web/src/App.tsx
+++ b/apps/web/src/App.tsx
@@ -1,29 +1,46 @@
 import { useState } from "react";
-import type { RiskAssessment } from "@custos/core";
+import type { Address, RiskAssessment } from "@custos/core";
 import { requiresFriction, requiresHardBlock } from "@custos/core";
-import { analyzeSendIntent } from "./compositionRoot.js";
+import { analyzeSendIntent, syncRiskList } from "./compositionRoot.js";
 
 export function App() {
   const [address, setAddress] = useState("");
   const [amount, setAmount] = useState("");
   const [context, setContext] = useState("");
+  const [destination, setDestination] = useState<Address | null>(null);
   const [assessment, setAssessment] = useState<RiskAssessment | null>(null);
   const [busy, setBusy] = useState(false);
+  const [reporting, setReporting] = useState(false);
+  const [reported, setReported] = useState(false);
 
   async function handleCheck() {
     setBusy(true);
+    setReported(false);
     try {
+      const checkedDestination: Address = { value: address, network: "tron" };
       const result = await analyzeSendIntent.execute({
-        destination: { value: address, network: "tron" },
+        destination: checkedDestination,
         amountUsdt: Number(amount) || 0,
         context: context ? { text: context } : undefined,
       });
+      setDestination(checkedDestination);
       setAssessment(result);
     } finally {
       setBusy(false);
     }
   }
 
+  async function handleReportScam() {
+    if (!destination) return;
+    setReporting(true);
+    try {
+      await syncRiskList.reportScam(destination);
+      setReported(true);
+    } finally {
+      setReporting(false);
+    }
+  }
+
   return (
     <main style={{ maxWidth: 560, margin: "2rem auto", fontFamily: "system-ui" }}>
       <h1>Custos</h1>
@@ -74,6 +91,9 @@ export function App() {
           <strong>Risk level: {assessment.level}</strong>
           <p>{assessment.summary}</p>
           {requiresHardBlock(assessment.level) && <p>This send would be blocked — WDK signing must not proceed.</p>}
+          <button onClick={handleReportScam} disabled={reporting || reported} style={{ marginTop: 12, padding: "8px 16px" }}>
+            {reported ? "Reported — added to local risk list" : reporting ? "Reporting..." : "Report as scam"}
+          </button>
         </div>
       )}
     </main>
diff --git a/apps/web/src/compositionRoot.ts b/apps/web/src/compositionRoot.ts
index f5ed7ad..3ed47f0 100644
--- a/apps/web/src/compositionRoot.ts
+++ b/apps/web/src/compositionRoot.ts
@@ -1,4 +1,4 @@
-import { AnalyzeSendIntent, RecordUserDecision } from "@custos/core";
+import { AnalyzeSendIntent, RecordUserDecision, SyncRiskList } from "@custos/core";
 import { QvacScamDetectionAdapter } from "@custos/adapters-qvac";
 import { LocalRiskListAdapter } from "@custos/adapters-p2p";
 import { LocalAuditLogAdapter } from "@custos/adapters-storage";
@@ -15,3 +15,4 @@ const auditLog = new LocalAuditLogAdapter();
 
 export const analyzeSendIntent = new AnalyzeSendIntent({ scamDetection, riskList });
 export const recordUserDecision = new RecordUserDecision({ auditLog });
+export const syncRiskList = new SyncRiskList({ riskList });