diff --git a/Model/ParadoxLabs/Authnetcim/Model/Gateway.php b/Model/ParadoxLabs/Authnetcim/Model/Gateway.php
new file mode 100644
index 0000000..0dbba48
--- /dev/null
+++ b/Model/ParadoxLabs/Authnetcim/Model/Gateway.php
@@ -0,0 +1,113 @@
+<?php
+
+namespace Signifyd\Connect\Model\ParadoxLabs\Authnetcim\Model;
+
+use ParadoxLabs\Authnetcim\Model\Gateway as ParadoxLabsGateway;
+use Signifyd\Connect\Model\TransactionIntegration;
+
+class Gateway extends ParadoxLabsGateway
+{
+    /**
+     * @var TransactionIntegration
+     */
+    protected $transactionIntegration;
+
+    /**
+     * CheckoutPaymentsDetailsHandler constructor.
+     * @param TransactionIntegration $transactionIntegration
+     */
+    public function __construct(
+        TransactionIntegration $transactionIntegration,
+        \ParadoxLabs\TokenBase\Helper\Data $helper,
+        \ParadoxLabs\TokenBase\Model\Gateway\Xml $xml,
+        \ParadoxLabs\TokenBase\Model\Gateway\ResponseFactory $responseFactory,
+        \Magento\Framework\HTTP\ZendClientFactory $httpClientFactory,
+        \Magento\Framework\Module\Dir $moduleDir,
+        \Magento\Framework\Registry $registry,
+        array $data = []
+    ) {
+        $this->transactionIntegration = $transactionIntegration;
+        parent::__construct(
+            $helper,
+            $xml,
+            $responseFactory,
+            $httpClientFactory,
+            $moduleDir,
+            $registry,
+            $data
+        );
+    }
+
+    protected function handleTransactionError()
+    {
+        if (empty($this->lastResponse) === false &&
+            isset($this->lastResponse['transactionResponse']) &&
+            isset($this->lastResponse['transactionResponse']['responseCode']) &&
+            isset($this->lastResponse['transactionResponse']['errors']) &&
+            isset($this->lastResponse['transactionResponse']['errors']['error']) &&
+            isset($this->lastResponse['transactionResponse']['errors']['error']['errorCode']) &&
+            $this->lastResponse['transactionResponse']['responseCode'] == 2
+        ) {
+            switch ($this->lastResponse['transactionResponse']['errors']['error']['errorCode']) {
+                case 6:
+                case 37:
+                case 315:
+                    $signifydReason = 'INVALID_NUMBER';
+                    break;
+
+                case 7:
+                case 8:
+                case 316:
+                case 317:
+                    $signifydReason = 'INVALID_EXPIRY_DATE';
+                    break;
+
+                case 19:
+                case 20:
+                case 21:
+                case 22:
+                case 23:
+                case 25:
+                case 26:
+                case 35:
+                case 57:
+                case 58:
+                case 59:
+                case 60:
+                case 61:
+                case 62:
+                case 63:
+                case 120:
+                case 121:
+                case 122:
+                case 153:
+                case 170:
+                case 171:
+                case 172:
+                case 173:
+                case 180:
+                case 181:
+                case 192:
+                case 261:
+                    $signifydReason = 'PROCESSING_ERROR';
+                    break;
+
+                default:
+                    $signifydReason = 'CARD_DECLINED';
+                    break;
+
+            }
+
+            if (isset($this->lastResponse['transactionResponse']['errors']['error']['errorText'])) {
+                $this->transactionIntegration->setGatewayStatusMessage(
+                    $this->lastResponse['transactionResponse']['errors']['error']['errorText']
+                );
+            }
+
+            $this->transactionIntegration->setGatewayRefusedReason($signifydReason);
+            $this->transactionIntegration->submitToTransactionApi();
+        }
+
+        parent::handleTransactionError();
+    }
+}
\ No newline at end of file
diff --git a/etc/di.xml b/etc/di.xml
index 7ab144e..0ed7291 100644
--- a/etc/di.xml
+++ b/etc/di.xml
@@ -178,6 +178,7 @@
     </type>
 
     <!-- Preferences -->
+    <preference for="ParadoxLabs\Authnetcim\Model\Gateway" type="Signifyd\Connect\Model\ParadoxLabs\Authnetcim\Model\Gateway" />
     <preference for="Magento\Reports\Block\Adminhtml\Shopcart\Abandoned\Grid" type="Signifyd\Connect\Block\Adminhtml\Shopcart\Abandoned\Grid" />
     <preference for="Magento\Sales\Model\Order\Payment" type="Signifyd\Connect\Model\Magento\Sales\Model\Order\Payment" />
     <preference for="Signifyd\Connect\Api\RerouteRepositoryInterface" type="Signifyd\Connect\Model\RerouteRepository"/>