By George Curta · Last updated 2026-04-07
AI Data Leak Prevention
32% of all data exfiltration now happens through AI tools. Stop sensitive data from reaching ChatGPT, Claude, Copilot, and other GenAI platforms with real-time anonymization.
Why AI Data Leak Prevention is Critical
AI tools like ChatGPT, Claude, and Copilot have transformed how we work. But they've also created a massive new attack surface. According to LayerX's 2025 research, AI is now the #1 data exfiltration vector, surpassing traditional channels like email and USB drives.
Real-World AI Data Breaches (2025)
- Chrome Extension Breach: 900,000 users had their AI conversations stolen via malicious browser extension (Dec 2025)
- Urban VPN Breach: 8 million users' AI data harvested through VPN service (2025)
- Average breach cost: $4.88 million (IBM 2024), with AI-related breaches trending higher
Complete AI Data Leak Prevention
Multiple layers of protection for all AI touchpoints
Chrome Extension
Real-time protection for ChatGPT, Claude, Gemini. Auto-detect and anonymize PII before it's sent.
Learn moreMCP Server
Integrate with Cursor, Windsurf, and other MCP-compatible AI coding tools. Protect your codebase.
Learn moreDesktop App
Process files locally before sharing with AI. Batch anonymization for documents, spreadsheets, and more.
Learn moreREST API
Build AI leak prevention into your applications. Protect data pipelines and automated workflows.
Learn moreAI Leak Prevention Capabilities
285+ Entity Types
Detect names, SSNs, credit cards, API keys, medical records, and 250+ more PII categories that could leak through AI.
48 Languages
Global coverage for multinational teams. Detect PII in English, German, French, Spanish, Chinese, Japanese, and 42 more.
Reversible Encryption
AES-256-GCM encryption lets you restore original values when needed. Maintain data utility while preventing leaks.
Zero-Knowledge
Encryption keys never leave your control. We can't access your data even if compelled. True zero-knowledge architecture.
EU Data Residency
100% German infrastructure on Hetzner. No AWS, Azure, or GCP. No US Cloud Act exposure. Full GDPR compliance.
Enterprise Ready
Deploy org-wide with managed policies. Team management, usage analytics, and centralized key management.
30-Day Implementation Roadmap
Days 1-7: Assessment
Audit current AI tool usage. Identify high-risk teams and data flows. Deploy Chrome Extension to pilot group.
Days 8-14: Policy
Draft AI acceptable use policy. Configure detection rules for your sensitive data types. Set up team management.
Days 15-21: Rollout
Deploy to all teams. Conduct employee training. Configure MCP Server for development teams.
Days 22-30: Optimize
Review detection accuracy. Refine policies based on feedback. Set up ongoing monitoring and reporting.
Related Resources
AI is Now the #1 Data Exfiltration Vector
LayerX 2025 research shows 77% of employees paste sensitive data into AI.
AI Data Leakage Prevention Guide
18-page guide with policy templates, risk assessment, and implementation roadmap.
Secure AI Usage with MCP Server
Step-by-step guide to setting up the MCP Server for Cursor and Windsurf.
Stop AI Data Leaks Before They Happen
200 free tokens to get started. No credit card required. Deploy Chrome Extension in minutes.
About this page
We update this page when our platform or the law changes.
Read our founder note for how we work.
Each change shows up in the timestamp at the top.
Related reading
- Common questions
- Glossary
- How tokens work
- Security posture
- Where we comply
- What we detect
- Case studies
- Release notes
We follow these rules
- GDPR (EU 2016/679).
- ISO/IEC 27001:2022.
- NIS2 (EU 2022/2555).
- HIPAA safe harbor under 45 CFR § 164.514(b)(2).
Our promise
We do not sell your data.
We do not train models on your text.
We store your files in Germany.
You can delete your account at any time.
You own your work.
Where we run
Our servers live in Falkenstein, Germany.
We use Hetzner. They hold ISO 27001 certification.
All data stays in the EU.
Backups run every day.
Need help?
Email support@anonym.legal.
We reply within one business day.
How we test
We run a full check suite on every release.
Each surface gets its own sweep script and report.
Human reviewers spot-check the output each week.
We track recall and precision on a labelled set.
Bad runs block the deploy.
What we never do
- We never sell your information to third parties.
- We never train models on what you upload.
- We never keep your work after you delete it.
- We never share keys with any outside firm.
- We never run ads inside the product.
Plans in plain words
We sell credits, not seats.
One credit covers one short job.
Long jobs use a few credits each.
You can top up at any time.
Unused credits roll over each month.
Read the plans page for current rates.
Who built this
A small team of engineers and lawyers built this.
We ship from Europe and work in the open.
Our founder note spells out why we started.
Where to start
- Open the web app and try a sample file.
- Learn how credits get counted.
- See current plans and limits.
- Meet the team behind the product.
How the parts fit
A browser add-on cleans text inside Chrome.
A Word plug-in handles drafts in Office.
A small desktop tool works on whole folders.
An agent protocol link feeds large models safely.
All four share one core engine and one rule set.
Words from our team
We started this work after a lunch about cookies.
One friend kept getting odd ads on her phone.
We asked why a court file leaked through a draft.
We sketched the first build on a napkin that week.
By month three we had a tiny demo for a friend.
She used it on her first case the next day.
Common questions we hear
Can the tool read scanned PDFs? Yes, with OCR.
Does it work on long files? Yes, in small chunks.
Can I roll my own rule set? Yes, save it as a preset.
Does it run offline? The desktop build runs offline.
Do you keep my files? No, the cloud build wipes after each run.
Will it learn from my work? No, we never train on inputs.
A short tour of the workflow
Upload a file or paste a snippet of prose.
Pick the entities you want gone from the draft.
Choose a method: replace, mask, hash, encrypt, or redact.
Press run and watch the side panel show each hit.
Skim the result and tweak any rule that misfired.
Save the cleaned file or send it to a teammate.