How do I secure OpenAI applications?

Integrate Wardstone Guard with your OpenAI application to detect prompt injections, jailbreaks, harmful content, and data leakage. Wardstone validates inputs before they reach OpenAI and screens outputs before returning them to users.

What security risks does OpenAI have?

Prompt Injection via Function Calls: Attackers can craft inputs that manipulate GPT's function calling to execute unintended operations or leak system prompts. Jailbreaking through Role-play: GPT models are susceptible to DAN-style jailbreaks that bypass content filters through persona adoption. System Prompt Extraction: Without protection, attackers can coerce the model into revealing your system prompt and business logic.

OpenAI + Wardstone

Secure GPT-5 & o3 Applications

Protect your OpenAI GPT-5, o3, and GPT-4.1 applications with Wardstone Guard. Detect prompt injections, jailbreaks, and harmful content before they reach your model.

13 Supported Models· all protected with sub-30ms latency

GPT-5.2GPT-5.2 ProGPT-5.1GPT-5 nanoo3-minio1-pro+7 more

Try the Playground Visit OpenAI

Why Secure OpenAI?

Prompt Injection via Function Calls

High Risk

Attackers can craft inputs that manipulate GPT's function calling to execute unintended operations or leak system prompts.

Jailbreaking through Role-play

High Risk

GPT models are susceptible to DAN-style jailbreaks that bypass content filters through persona adoption.

System Prompt Extraction

Medium Risk

Without protection, attackers can coerce the model into revealing your system prompt and business logic.

Security Considerations

1
OpenAI's built-in moderation API only covers content categories, not prompt attacks
2
No native protection against prompt injection or jailbreak attempts
3
Function calling can be exploited without input validation
4
Wardstone adds sub-30ms latency vs OpenAI's typical 500ms-2s response time

How to Integrate

Install the Wardstone SDK
Add the Wardstone client library to your project alongside the OpenAI SDK.
Validate input before OpenAI
Check user messages with Wardstone Guard before sending to the Completions API.
Validate output before returning
Screen GPT responses for harmful content, PII leakage, or policy violations.
Handle flagged content
Implement graceful fallbacks when Wardstone detects threats.

Pricing Note

OpenAI charges per token; Wardstone charges per API call. For a typical 500-token request, Wardstone adds <$0.001 for comprehensive security.

Secure OpenAI with Wardstone

# Step 1: Check user input with Wardstone
curl -X POST "https://api.wardstone.ai/v1/detect" \
  -H "Authorization: Bearer YOUR_WARDSTONE_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text": "User message here"}'
 
# Response: { "prompt_attack": { "detected": false, ... } }
 
# Step 2: If safe, send to OpenAI
curl -X POST "https://api.openai.com/v1/chat/completions" \
  -H "Authorization: Bearer YOUR_OPENAI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.2",
    "messages": [{"role": "user", "content": "User message here"}]
  }'
 
# Step 3: Check OpenAI response with Wardstone before returning to user

Common Use Cases

Chatbots and virtual assistants

Code generation and review tools

Content creation platforms

Agentic workflows and automation

Customer support automation

All Supported OpenAI Models

Wardstone Guard protects all OpenAI models with the same comprehensive security coverage. Whether you're using the latest releases or legacy models still in production, every API call is protected.

GPT-5.2

GPT-5.2 Pro

GPT-5.1

GPT-5 nano

o3-mini

o1-pro

GPT-4.1

GPT-4.1 mini

GPT-4.1 nano

GPT-4o

GPT-4o mini

GPT-4 Turbo