Prompt Firewall (AI DLP)
DLP proxy between your team and LLM providers. Blocks API keys, passwords, PII from being sent to ChatGPT, Claude, or Copilot. Full audit logging.
Every time a developer pastes code into ChatGPT, they might be sending API keys, database passwords, customer PII, or proprietary algorithms to a third-party AI provider. Our Prompt Firewall sits between your team and LLM services, scanning every outgoing prompt for sensitive data. It blocks or masks credentials, logs who sent what to which model, and enforces team-level policies to prevent accidental data leaks.
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"Senior engineers who actually deliver what they promise. Rare."
Thomas K., IT Manager · Austria
🤔Is This You?
- ✗You have a technical problem that's costing you time and money every day
- ✗You've tried to fix it yourself but can't get it resolved correctly
- ✗You need it done by a senior professional — right the first time
- ✗You want a fixed price, not an open-ended hourly engagement
- ✗You need it done this week, not in 6 weeks on a waiting list
→ If even one resonates — this service is exactly for you.
What You Get
- Proxy for intercepting prompts to ChatGPT, Claude, Copilot, Gemini
- Detection and blocking/masking of API keys and tokens
- PII identification and masking (names, emails, addresses, SSN)
- Internal IP address and infrastructure detail masking
- Full audit log: who, when, which model, what was sent
- Team/project-level policies and allowlists
- Dashboard with usage analytics and policy violation reports
How It Works
Transparent proxy is deployed that intercepts all outgoing LLM API requests from your team.
Detection patterns are tuned for your credential formats, PII types, and internal naming conventions.
Team and project-level policies define what gets blocked, masked, or flagged for review.
Dashboard shows usage patterns, violation frequency, and team-level compliance.
Who Needs This
- Companies whose developers regularly paste code snippets into ChatGPT/Claude
- Organizations handling GDPR-protected customer data in their codebase
- Security teams who discovered credentials were shared with external AI providers
- Companies whose security policies prohibit sending internal data to third-party AI services
- Organizations needing audit logs of AI tool usage for compliance
START HERE
Not Sure What Else to Fix?
Our AI Code Security Audit ($149) gives you a complete picture of vulnerabilities in your AI-generated code — the fastest way to understand your full risk surface.
Get AI Code Audit — $149Frequently Asked Questions
Does this block developers from using ChatGPT/Claude?
No. Developers continue using their AI tools normally. The firewall only intercepts and sanitizes content before it leaves your network. Usage is not blocked, only sensitive data is masked.
Which AI providers are covered?
ChatGPT (OpenAI), Claude (Anthropic), GitHub Copilot, Google Gemini, Mistral. Any LLM API accessed via HTTP is covered.
Can developers see what was masked?
By default, masking is transparent to the developer — the LLM response is still useful. Policies can be configured to alert the developer that sensitive data was detected.
Does this work with VS Code and browser extensions?
Yes. The proxy can be configured at the network level (transparent), via browser extension, or via IDE plugin depending on your infrastructure.
What Our Clients Say
"Senior engineers who actually deliver what they promise. Fixed price, fixed timeline, thorough documentation. Rare combination."
"Worked with 4 agencies before finding Optimum Web. First team that delivered exactly what the scope said, on time."
"The 14-day warranty is real. Had a small follow-up question and it was handled same day, no extra charge."
Ready to Secure Your AI-Powered Development?
$490 fixed price · 5 business days · 14-day warranty