AutomationFlowsSlack & Telegram › Fraud Alert Pipeline

Fraud Alert Pipeline

Fraud Alert Pipeline. Uses emailSend, httpRequest, redis, slack. Webhook trigger; 9 nodes.

Webhook trigger★★★☆☆ complexity9 nodesEmail SendHTTP RequestRedisSlack
Slack & Telegram Trigger: Webhook Nodes: 9 Complexity: ★★★☆☆ Added:

This workflow follows the Emailsend → HTTP Request recipe pattern — see all workflows that pair these two integrations.

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

Download .json
{
  "name": "Fraud Alert Pipeline",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "fraud/cli-spoofing",
        "authentication": "headerAuth",
        "headerAuth": {
          "name": "x-webhook-secret",
          "value": "={{$env.WEBHOOK_SECRET}}"
        }
      },
      "id": "cli-webhook",
      "name": "CLI Spoofing Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        250,
        300
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "fraud/irsf",
        "authentication": "headerAuth"
      },
      "id": "irsf-webhook",
      "name": "IRSF Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        250,
        500
      ]
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "fraud/wangiri",
        "authentication": "headerAuth"
      },
      "id": "wangiri-webhook",
      "name": "Wangiri Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [
        250,
        700
      ]
    },
    {
      "parameters": {
        "conditions": {
          "number": [
            {
              "value1": "={{$json.risk_score}}",
              "operation": "larger",
              "value2": 0.7
            }
          ]
        }
      },
      "id": "check-risk",
      "name": "Check Risk Level",
      "type": "n8n-nodes-base.if",
      "typeVersion": 1,
      "position": [
        500,
        300
      ]
    },
    {
      "parameters": {
        "fromEmail": "alerts@acm.ng",
        "toEmail": "fraud-team@acm.ng",
        "subject": "\ud83d\udea8 CLI Spoofing Alert - {{$json.spoofing_type}}",
        "text": "CLI Spoofing Detected\n\nPresented CLI: {{$json.presented_cli}}\nActual CLI: {{$json.actual_cli}}\nSpoofing Type: {{$json.spoofing_type}}\nConfidence: {{$json.confidence_score * 100}}%\n\nTime: {{$json.created_at}}"
      },
      "id": "send-cli-email",
      "name": "Send CLI Alert Email",
      "type": "n8n-nodes-base.emailSend",
      "typeVersion": 1,
      "position": [
        750,
        200
      ]
    },
    {
      "parameters": {
        "fromEmail": "alerts@acm.ng",
        "toEmail": "fraud-team@acm.ng",
        "subject": "\u26a0\ufe0f IRSF Alert - {{$json.destination_country}}",
        "text": "IRSF Fraud Attempt Detected\n\nSource: {{$json.source_number}}\nDestination: {{$json.destination_number}}\nCountry: {{$json.destination_country}}\nRisk Score: {{$json.risk_score * 100}}%\nEstimated Loss: \u20a6{{$json.estimated_loss}}\n\nAction: {{$json.action_taken}}\nTime: {{$json.created_at}}"
      },
      "id": "send-irsf-email",
      "name": "Send IRSF Alert Email",
      "type": "n8n-nodes-base.emailSend",
      "typeVersion": 1,
      "position": [
        500,
        500
      ]
    },
    {
      "parameters": {
        "url": "={{$env.PUSH_NOTIFICATION_URL}}",
        "method": "POST",
        "bodyParameters": {
          "parameters": [
            {
              "name": "title",
              "value": "Wangiri Detected"
            },
            {
              "name": "body",
              "value": "Suspicious call from {{$json.source_number}} ({{$json.ring_duration_ms}}ms ring)"
            },
            {
              "name": "target_number",
              "value": "={{$json.target_number}}"
            }
          ]
        }
      },
      "id": "send-wangiri-push",
      "name": "Send Wangiri Push",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 3,
      "position": [
        500,
        700
      ]
    },
    {
      "parameters": {
        "operation": "set",
        "key": "fraud:alert:{{$json.id}}",
        "value": "={{JSON.stringify($json)}}",
        "expiration": 86400
      },
      "id": "cache-alert",
      "name": "Cache Alert",
      "type": "n8n-nodes-base.redis",
      "typeVersion": 1,
      "position": [
        750,
        400
      ],
      "credentials": {
        "redis": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "channel": "#fraud-alerts",
        "text": "\ud83d\udea8 *{{$json.event_type}}* detected\n\u2022 Risk: {{$json.risk_score * 100}}%\n\u2022 Time: {{$json.created_at}}"
      },
      "id": "slack-notify",
      "name": "Slack Notification",
      "type": "n8n-nodes-base.slack",
      "typeVersion": 1,
      "position": [
        750,
        600
      ]
    }
  ],
  "connections": {
    "CLI Spoofing Webhook": {
      "main": [
        [
          {
            "node": "Check Risk Level",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check Risk Level": {
      "main": [
        [
          {
            "node": "Send CLI Alert Email",
            "type": "main",
            "index": 0
          },
          {
            "node": "Cache Alert",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "IRSF Webhook": {
      "main": [
        [
          {
            "node": "Send IRSF Alert Email",
            "type": "main",
            "index": 0
          },
          {
            "node": "Slack Notification",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Wangiri Webhook": {
      "main": [
        [
          {
            "node": "Send Wangiri Push",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "staticData": null,
  "tags": [
    {
      "name": "fraud",
      "id": "1"
    }
  ]
}

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About this workflow

Fraud Alert Pipeline. Uses emailSend, httpRequest, redis, slack. Webhook trigger; 9 nodes.

Source: https://github.com/abiolaogu/VoxGuard/blob/main/backend/n8n/workflows/fraud-alert-pipeline.json — original creator credit. Request a take-down →

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