Prevent phishing emails with GPT-4, VirusTotal, Slack, and Google Sheets

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1. Workflow Overview

This n8n workflow automates real time phishing detection by ingesting incoming emails, extracting indicators, analyzing content with AI (GPT 4), calculating risk scores, and taking immediate action...

Best for

SecOps automation workflows
AI Summarization automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.webhook, n8n-nodes-base.code, n8n-nodes-base.httprequest, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatopenai, n8n-nodes-base.switch, n8n-nodes-base.set

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Oneclick AI Squad.

Original n8n.io source

1.1 Workflow description

Title: Prevent phishing emails with GPT-4, VirusTotal, Slack, and Google Sheets
Workflow name: Prevent phishing emails with GPT-4, VirusTotal, Slack, and Google Sheets

This n8n workflow automates real-time phishing detection by ingesting incoming emails, extracting indicators, analyzing content with AI (GPT-4), calculating risk scores, and taking immediate action—quarantining malicious emails, flagging suspicious ones, alerting users and SOC, and logging everything for compliance and forensics. It prevents phishing attacks at the point of delivery with zero-touch automation.

How it works

Webhook receives email
Extract URLs, domains, keywords
VirusTotal + GPT-4 analysis
Risk score routing
Quarantine / Flag / Allow
Slack SOC alert + audit log

Risk Levels

🔴 HIGH (75–100) → Quarantine 🟡 MEDIUM (40–74) → Flag + warn 🟢 LOW (0–39) → Allow + log

Credentials

OpenAI API (GPT-4o)
VirusTotal API
Slack Webhook
Google Sheets
SMTP Email

Placeholders to Replace

YOUR_OPENAI_CREDENTIAL_ID
YOUR_VIRUSTOTAL_API_KEY
YOUR_SLACK_WEBHOOK_PATH
YOUR_GOOGLE_SHEET_ID
YOUR_EMAIL_GATEWAY_TOKEN

Explore More AI-Powered Email Security: Contact us to deploy zero-trust email gateways, automated BEC response, and insider threat detection using n8n + LLMs.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Sticky Note Overview

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 2 - Sticky Note S1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 3 - Sticky Note S2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 4 - Sticky Note S3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 5 - Sticky Note S4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 6 - Receive Email via Webhook

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2

Block 7 - Extract IOCs & Normalize

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 8 - VirusTotal URL Scan

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 9 - GPT-4 Phishing Analysis

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.6

Block 10 - GPT-4o Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1

Block 11 - Parse & Score Risk

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 12 - Risk Level Switch

Type / Role: n8n-nodes-base.switch - switch
Config choices: Version 3

Block 13 - Quarantine — HIGH

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 14 - Flag — MEDIUM

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 15 - Allow — LOW

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 16 - Merge All Paths

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3

Block 17 - Slack SOC Alert

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 18 - Warn User via Email

Type / Role: n8n-nodes-base.emailSend - emailSend
Config choices: Version 2.1

Block 19 - Write Audit Log

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 20 - Return Detection Result

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1

3. Summary Table

Workflow	Prevent phishing emails with GPT-4, VirusTotal, Slack, and Google Sheets
Complexity	advanced
Nodes	20
Categories	SecOps, AI Summarization
Author	Oneclick AI Squad
Published	07 Nov 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/10595/10595.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source SecOps workflows AI Summarization workflows

Frequently asked questions

What does Prevent phishing emails with GPT-4, VirusTotal, Slack, and Google Sheets do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your SecOps, AI Summarization use case.

Oneclick AI Squad

224 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.webhook n8n-nodes-base.code n8n-nodes-base.httprequest @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatopenai n8n-nodes-base.switch n8n-nodes-base.set

Complexity

advanced

Published 07 Nov 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/10595/10595.json

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Prevent phishing emails with GPT-4, VirusTotal, Slack, and Google Sheets

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Risk Levels

Credentials

Placeholders to Replace

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Sticky Note Overview

Block 2 - Sticky Note S1

Block 3 - Sticky Note S2

Block 4 - Sticky Note S3

Block 5 - Sticky Note S4

Block 6 - Receive Email via Webhook

Block 7 - Extract IOCs & Normalize

Block 8 - VirusTotal URL Scan

Block 9 - GPT-4 Phishing Analysis

Block 10 - GPT-4o Model

Block 11 - Parse & Score Risk

Block 12 - Risk Level Switch

Block 13 - Quarantine — HIGH

Block 14 - Flag — MEDIUM

Block 15 - Allow — LOW

Block 16 - Merge All Paths

Block 17 - Slack SOC Alert

Block 18 - Warn User via Email

Block 19 - Write Audit Log

Block 20 - Return Detection Result

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions