diff --git a/python_ml/main.py b/python_ml/main.py
index 4b868c3..6201f44 100644
--- a/python_ml/main.py
+++ b/python_ml/main.py
@@ -111,6 +111,10 @@ class UnblockIPRequest(BaseModel):
     ip_address: str
     list_name: str = "ddos_blocked"
 
+class BlockAllCriticalRequest(BaseModel):
+    min_score: float = 80.0
+    list_name: str = "ddos_blocked"
+
 
 # API Endpoints
 
@@ -499,6 +503,94 @@ async def block_ip(request: BlockIPRequest):
     except Exception as e:
         raise HTTPException(status_code=500, detail=str(e))
 
+@app.post("/block-all-critical")
+async def block_all_critical(request: BlockAllCriticalRequest):
+    """Blocca tutti gli IP critici non ancora bloccati sui router"""
+    try:
+        conn = get_db_connection()
+        cursor = conn.cursor(cursor_factory=RealDictCursor)
+        
+        cursor.execute("SELECT * FROM routers WHERE enabled = true")
+        routers = cursor.fetchall()
+        
+        if not routers:
+            raise HTTPException(status_code=400, detail="Nessun router configurato")
+        
+        cursor.execute("""
+            SELECT DISTINCT source_ip, MAX(CAST(risk_score AS FLOAT)) as max_score, 
+                   MAX(anomaly_type) as anomaly_type
+            FROM detections 
+            WHERE CAST(risk_score AS FLOAT) >= %s 
+              AND blocked = false
+              AND source_ip NOT IN (
+                  SELECT ip_address FROM whitelist WHERE active = true
+              )
+            GROUP BY source_ip
+            ORDER BY max_score DESC
+        """, (request.min_score,))
+        
+        unblocked_ips = cursor.fetchall()
+        
+        if not unblocked_ips:
+            cursor.close()
+            conn.close()
+            return {
+                "message": "Nessun IP critico da bloccare",
+                "blocked": 0,
+                "total_critical": 0,
+                "skipped_whitelisted": 0
+            }
+        
+        blocked_count = 0
+        failed_count = 0
+        results_detail = []
+        
+        for ip_row in unblocked_ips:
+            ip = ip_row['source_ip']
+            score = ip_row['max_score']
+            anomaly = ip_row['anomaly_type']
+            
+            try:
+                block_results = await mikrotik_manager.block_ip_on_all_routers(
+                    routers,
+                    ip,
+                    list_name=request.list_name,
+                    comment=f"IDS bulk-block: {anomaly} (score: {score:.0f})"
+                )
+                
+                if any(block_results.values()):
+                    cursor.execute("""
+                        UPDATE detections 
+                        SET blocked = true, blocked_at = NOW()
+                        WHERE source_ip = %s AND blocked = false
+                    """, (ip,))
+                    blocked_count += 1
+                    results_detail.append({"ip": ip, "score": score, "status": "blocked"})
+                else:
+                    failed_count += 1
+                    results_detail.append({"ip": ip, "score": score, "status": "failed"})
+                    
+            except Exception as e:
+                failed_count += 1
+                results_detail.append({"ip": ip, "score": score, "status": f"error: {str(e)}"})
+        
+        conn.commit()
+        cursor.close()
+        conn.close()
+        
+        return {
+            "message": f"Blocco massivo completato: {blocked_count} IP bloccati, {failed_count} falliti",
+            "blocked": blocked_count,
+            "failed": failed_count,
+            "total_critical": len(unblocked_ips),
+            "details": results_detail[:50]
+        }
+        
+    except HTTPException:
+        raise
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
+
 @app.post("/unblock-ip")
 async def unblock_ip(request: UnblockIPRequest):
     """Sblocca un IP da tutti i router"""
diff --git a/server/routes.ts b/server/routes.ts
index b2d795a..9973681 100644
--- a/server/routes.ts
+++ b/server/routes.ts
@@ -622,6 +622,42 @@ export async function registerRoutes(app: Express): Promise<Server> {
     }
   });
 
+  app.post("/api/ml/block-all-critical", async (req, res) => {
+    try {
+      const { min_score = 80 } = req.body;
+
+      const controller = new AbortController();
+      const timeout = setTimeout(() => controller.abort(), 300000); // 5 min timeout
+
+      const response = await fetch(`${ML_BACKEND_URL}/block-all-critical`, {
+        method: "POST",
+        headers: getMLBackendHeaders(),
+        body: JSON.stringify({ min_score }),
+        signal: controller.signal,
+      });
+
+      clearTimeout(timeout);
+
+      if (!response.ok) {
+        const errorData = await response.json().catch(() => ({}));
+        return res.status(response.status).json({ 
+          error: errorData.detail || "Block all critical failed",
+        });
+      }
+
+      const data = await response.json();
+      res.json(data);
+    } catch (error: any) {
+      if (error.name === 'AbortError') {
+        return res.status(504).json({ error: "Timeout - operazione troppo lunga" });
+      }
+      if (error.code === 'ECONNREFUSED') {
+        return res.status(503).json({ error: "ML backend non disponibile" });
+      }
+      res.status(500).json({ error: error.message || "Errore blocco massivo" });
+    }
+  });
+
   app.get("/api/ml/stats", async (req, res) => {
     try {
       const controller = new AbortController();