diff --git a/src/app/api/sms/send-notification/route.js b/src/app/api/sms/send-notification/route.js
deleted file mode 100644
index 2d4b123a..00000000
--- a/src/app/api/sms/send-notification/route.js
+++ /dev/null
@@ -1,59 +0,0 @@
-/**
- * @fileoverview SMS notification API endpoint
- * Handles sending SMS notifications via Twilio API
- */
-
-import { NextResponse } from 'next/server';
-import { TwilioSMSProvider } from '@/lib/services/twilio-sms-provider.js';
-
-/**
- * Send SMS notification
- * @param {Object} params - SvelteKit request parameters
- * @param {Request} params.request - The request object
- */
-export async function POST(request) {
-  try {
-    const { phoneNumber, message } = await request.json();
-
-    if (!phoneNumber || !message) {
-      return NextResponse.json(
-        { error: 'Phone number and message are required' },
-        { status: 400 }
-      );
-    }
-
-    console.log('📱 [SMS-API] Sending SMS via Twilio:', {
-      to: phoneNumber,
-      messageLength: message.length,
-      timestamp: new Date().toISOString()
-    });
-
-    // Initialize Twilio SMS provider
-    const twilioProvider = new TwilioSMSProvider();
-    
-    // Send SMS via Twilio
-    const result = await twilioProvider.sendSMS(phoneNumber, message);
-    
-    const messageId = (result && typeof result === 'object' && 'messageId' in result) ? result.messageId : 'unknown';
-    const status = (result && typeof result === 'object' && 'status' in result) ? result.status : 'sent';
-    
-    console.log('📱 [SMS-API] SMS sent successfully:', {
-      messageId,
-      status
-    });
-    
-    return NextResponse.json({
-      success: true,
-      messageId,
-      status
-    });
-
-  } catch (error) {
-    console.error('📱 [SMS-API] Error sending SMS:', error);
-    const errorMessage = error instanceof Error ? error.message : 'Failed to send SMS notification';
-    return NextResponse.json(
-      { error: errorMessage },
-      { status: 500 }
-    );
-  }
-}
\ No newline at end of file
diff --git a/src/middleware.js b/src/middleware.js
index 7bc62218..70d8b915 100644
--- a/src/middleware.js
+++ b/src/middleware.js
@@ -4,7 +4,7 @@ import { RateLimiter } from '@/lib/server/rate-limiter.js';
 const authRateLimiter = new RateLimiter({ maxRequests: 10, windowMs: 60 * 1000 });
 const webhookRateLimiter = new RateLimiter({ maxRequests: 100, windowMs: 60 * 1000 });
 const apiRateLimiter = new RateLimiter({ maxRequests: 60, windowMs: 60 * 1000 });
-const keyBackupRateLimiter = new RateLimiter({ maxRequests: 5, windowMs: 60 * 60 * 1000 });
+const keyBackupRateLimiter = new RateLimiter({ maxRequests: 10, windowMs: 15 * 60 * 1000 });
 
 function getClientIp(request) {
   // See the detailed note in src/lib/server/rate-limiter.js.