Guide · Updated 2026 · 5 min read
What is AI DLP? Data loss prevention for ChatGPT, Claude and Gemini
AI DLP (data-loss prevention for AI) is a category of security tooling that stops sensitive data from being sent to generative AI tools like ChatGPT, Claude, and Gemini. As AI adoption outpaced controls, it emerged to close a gap traditional DLP was never designed for.
A short definition
AI DLP inspects the prompts and files employees send to AI tools and enforces policy on them — blocking, redacting, or logging content that contains secrets, credentials, regulated data, or confidential material. The defining trait is that enforcement happens at the point of interaction with the AI tool, not somewhere downstream.
How it differs from traditional DLP
Traditional DLP inspects email, endpoints, file shares, and cloud storage. AI DLP inspects the browser-to-AI-provider channel, which those systems don't see. It also has to understand AI-specific context: a pasted prompt, a dropped file inside a chat, a code snippet in a conversation.
- Traditional DLP: email, endpoints, cloud storage, SaaS APIs
- AI DLP: prompts, chat file uploads, and code sent to AI tools in real time
- Traditional DLP often acts after data moves; AI DLP acts before the prompt is sent
What good AI DLP detects
Effective AI DLP covers the categories most likely to leak into a prompt:
- Credentials and secrets: API keys, tokens, passwords, private keys
- Personally identifiable information: SSNs, card numbers, contact details
- Confidential business data: financials, contracts, source code, roadmaps
- Document classification markers: Confidential, Restricted, Internal
How browser-level AI DLP works
The most direct approach scans in the browser. A managed extension patches the page's network calls on AI tool domains, reads the outgoing prompt and any attached files, runs them through your policy set, and blocks or logs matches before the request completes.
Slopfence implements this pattern: real-time scanning on ChatGPT, Claude, Gemini and more, with file parsing, risk scoring, and an audit trail — no proxy, no VPN, deployable via GPO or MDM in an afternoon.
Frequently asked
What does AI DLP stand for?
AI DLP stands for AI data-loss prevention — controls that stop sensitive data from being sent to generative AI tools like ChatGPT, Claude, and Gemini.
Is AI DLP different from a firewall or CASB?
Yes. Firewalls and CASBs operate at the network layer and struggle to inspect encrypted prompt content or files inside a chat. Browser-level AI DLP scans the actual prompt in the tab before it's sent.
Which AI tools should AI DLP cover?
At minimum the tools your team uses most — typically ChatGPT, Claude, and Gemini, plus Copilot, Perplexity, Mistral and Grok. Slopfence covers all of these at the browser layer.
Keep reading: how Slopfence works · DLP for ChatGPT