By George Curta · Last updated 2026-04-07
Vibe Coding Safety: Prevent PII Leaks in AI-Generated Code
Cursor, Windsurf, and Claude Desktop ship production code at speed — but without PII guardrails. Anonymize sensitive data before it reaches your AI IDE and strip it from generated code automatically.
Why Vibe Coding Creates PII Risk
Vibe coding speeds up development. But AI IDEs like Cursor and Windsurf pull in your entire codebase. That includes any real data in tests, fixtures, or prompts. PII then slips silently into model context, training fine-tunes, logs, and generated output.
Documented risks in AI-assisted development:
- CVE-2026-22708 (Cursor IDE): Credential and PII data in open files transmitted to model context without filtering. CVSS 8.1.
- LangChain CVE-2026-22708: CVSS 9.3 — prompt injection via RAG documents injects PII into unintended model outputs and logs.
- 8,000+ exposed MCP servers: Public MCP server scans reveal thousands processing raw PII without sanitization, violating GDPR and HIPAA.
Four Ways to Protect Your Vibe Coding Workflow
Choose the integration that fits your stack — or combine them for full-stack PII coverage.
MCP Server
Anonymize prompts transparently in Claude Desktop, Cursor, and any MCP-compatible IDE. PII is replaced before reaching the model; responses are de-anonymized automatically.
Learn moreREST API
Integrate PII anonymization directly into your CI/CD pipeline, test fixture generators, or code review bots via a single API call.
Learn moreChrome Extension
Protect browser-based AI IDEs and code assistants. Anonymizes text before it is sent from the browser — zero configuration required.
Learn moreDesktop App
Batch-process code files, test fixtures, and datasets locally before sharing with AI tools. Works offline with zero data leaving your machine.
Learn moreBuilt for Developer Workflows
Native IDE Integration
MCP Server connects directly to Cursor, Windsurf, Claude Desktop, and VS Code. No middleware, no proxies — just transparent PII anonymization in your existing workflow.
285+ Entity Types
Detect names, emails, API keys, credentials, SSNs, IBANs, and 285+ other PII types across 48 languages — including code-embedded secrets and hardcoded test data.
Reversible Anonymization
Replace PII with consistent placeholders (e.g. [PERSON_1], [EMAIL_1]) so AI-generated code stays functional. De-anonymize the output in one step to restore real values.
Zero-Knowledge Architecture
Your encryption keys never leave your device. anonym.legal cannot read your original data. CSPRNG-backed key generation with AES-256-GCM encryption.
GDPR-aligned · HIPAA Safe-Harbor De-Identification
EU data residency. Anonymization meets GDPR Article 4(1) definition. Audit-ready reports for DPA inquiries; HIPAA Safe-Harbor de-identification recognizers (Customer responsibility for HIPAA compliance — separate BAA required for PHI processing).
Audit Logs
Every anonymization event is logged — entity types detected, timestamps, and session IDs — for compliance audits and incident response.
Set Up in Under 5 Minutes
Create a free account
Sign up at anonym.legal — free tier includes 200 tokens/month, all 285+ entity types, and full MCP Server access on the Pro plan.
Add the MCP Server to your IDE
Add the anonym-legal MCP Server config to your claude_desktop_config.json or Cursor settings. One JSON block — no binary installation.
Anonymize before every AI prompt
The MCP Server intercepts prompts containing PII and replaces entities with consistent placeholders before the model sees them. Fully transparent.
De-anonymize AI output
Paste the AI-generated code into the de-anonymize endpoint (or Chrome Extension) to restore original values. Your real data never touched the model.
Related Resources
Use Claude & ChatGPT Without Leaking PII
Step-by-step MCP Server setup guide for Claude Desktop, Cursor, and VS Code — with example configs and verification steps.
Cursor & Claude: Protecting Developer Credentials
How to prevent credential and PII leakage when using Cursor IDE with Claude — covering CVE disclosures and mitigations.
Why Enterprises Ban AI Coding Tools (And How MCP Fixes It)
The security case for MCP-based PII anonymization as an enterprise alternative to blanket AI tool bans.
Code Faster. Leak Nothing.
Start protecting your AI coding workflow today — free tier, no credit card required. MCP Server, REST API, Chrome Extension, and Desktop App included.
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.