{"product_id":"secure-ai-workflows-block-prompt-injection-with-gpt-5-5-slack","title":"Secure AI Workflows: Block Prompt Injection with GPT-5.5 \u0026 Slack","description":"\u003cp\u003eProtect your AI workflows from malicious attacks with this comprehensive security screening system that automatically detects and blocks prompt injection, social engineering, and data extraction attempts before they reach your production agents.\u003c\/p\u003e\n\n\u003ch3\u003eWhat this workflow does\u003c\/h3\u003e\n\u003cp\u003eThis zero-trust AI security workflow creates a protective barrier around your chatbots and automation systems. When untrusted user input arrives via webhook, it first runs deterministic checks using a Code node to identify instruction overrides, role hijacking, prompt leakage attempts, hidden Unicode characters, SQL-style payloads, and XSS-style content. The system then extracts and analyzes URLs against suspicious domain heuristics before passing the input to an isolated GPT-5.5 evaluator for semantic risk assessment.\u003c\/p\u003e\n\n\u003cp\u003eThe GPT-5.5 layer intelligently classifies threats including prompt injection attacks, data exfiltration attempts, and social engineering tactics. A sophisticated scoring system combines all detection signals to route legitimate requests to safe responses while automatically blocking, logging, and alerting your team via Slack when suspicious activity is detected. All security events are tracked in Google Sheets for analysis and compliance.\u003c\/p\u003e\n\n\u003ch3\u003eUse cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomer service chatbots\u003c\/strong\u003e - Screen support requests before they reach AI agents handling sensitive customer data\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePublic webhook endpoints\u003c\/strong\u003e - Protect automation workflows exposed to internet traffic from malicious payloads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAI content generation\u003c\/strong\u003e - Prevent prompt injection attacks on creative writing or marketing automation tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnterprise security\u003c\/strong\u003e - Add zero-trust screening to any AI system processing external input\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical details\u003c\/h3\u003e\n\u003cp\u003eBuilt using n8n's Code, Slack, Switch, Webhook, and Google Sheets nodes, this workflow requires OpenAI access to GPT-5.5, Slack credentials, and Google Sheets integration. Simply connect your credentials and route untrusted input through the `\/firewall-check` webhook endpoint before your main AI workflows.\u003c\/p\u003e\n\n\u003cp\u003eThe template includes customizable attack pattern detection, adjustable risk thresholds, and extension points for additional security services like URLScan, VirusTotal, or Safe Browsing APIs.\u003c\/p\u003e","brand":"N8N Commerce","offers":[{"title":"Default Title","offer_id":45512648196275,"sku":"N8N-15774","price":20.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/6279\/6723\/files\/h-lcwxMti9K4XuvhLVome_4344634980bc40e3ace4a3f4971fa5cb.jpg?v=1779008482","url":"https:\/\/buyflowscripts.com\/products\/secure-ai-workflows-block-prompt-injection-with-gpt-5-5-slack","provider":"N8N Commerce","version":"1.0","type":"link"}