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USE CASE: CUSTOMER SUPPORT

Safe AI for customer support

Deploy AI chatbots that handle customer inquiries safely. Protect customer data, prevent inappropriate responses, and maintain brand reputation.

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THE REPLY IS THE RISKschematic
customer messageinjection · canary echomodelsystem prompt+ a canary token you planta secret string. it can only appearin a reply if the prompt leaked.canary tokenthe system prompt leakedblock + alertpiianother customer's recordredactcontent safetytone and policyblockthe customer
In support the risky direction is outbound: the reader is a stranger, and the reply is the brand. The same canary token planted in your system prompt is watched on both legs — in an input it means the prompt is already out, in a reply it means the model just handed it over.

Where a support assistant is exposed

  1. 01

    PII Protection

    Automatically detect and redact customer PII before it reaches the LLM. Credit cards, SSNs, emails-all protected.

  2. 02

    Toxicity Filtering

    Block inappropriate, harmful, or off-brand responses. Configurable policies for different levels of sensitivity.

  3. 03

    Prompt Injection Defense

    Customers can't manipulate your chatbot with injection attacks. All inputs are analyzed in real-time.

  4. 04

    Response Validation

    Ensure AI responses are accurate, on-topic, and don't reveal internal information.

  5. 05

    Escalation Triggers

    Automatically detect when customers need human support and route appropriately.

  6. 06

    Conversation Logging

    Full audit trail of all interactions for quality assurance and compliance.

Why PromptGuard for support?

  • Automatic PII detection and redaction
  • Real-time toxicity filtering
  • Full conversation logging
  • Easy integration with any platform
  • 20,000 free requests/month

How it works for customer support

  1. 01

    Integrate

    Connect your chatbot to PromptGuard. Works with any LLM and chat platform.

  2. 02

    Protect

    Every message is scanned for PII, injection attempts, and policy violations.

  3. 03

    Respond

    Safe, validated responses are delivered to customers. Threats never reach your LLM.

Secure customer chat

typescript
import OpenAI from 'openai';

const client = new OpenAI({
  baseURL: 'https://api.promptguard.co/api/v1',
  apiKey: process.env.OPENAI_API_KEY,
  defaultHeaders: {
    'X-API-Key': process.env.PROMPTGUARD_API_KEY
  }
});

// Customer message with PII
const customerMessage = "My SSN is 123-45-6789, can you help?";

// PromptGuard automatically:
// 1. Detects and redacts the SSN
// 2. Scans for injection attempts
// 3. Validates the response
const response = await client.chat.completions.create({
  model="gpt-5-nano",
  messages: [
    { role: 'system', content: 'You are a helpful support agent.' },
    { role: 'user', content: customerMessage }
  ]
});

The controls this sector runs on

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Deploy AI chatbots your customers can trust. Protect their data and your reputation.

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