PRODUCT — PRIVACY LEAK DETECTOR
Detect Data Leaks in Your App Before Your Users Find Them
Find where your app may be exposing sensitive user data or private endpoints. Our privacy risk scanner checks every API response, URL, and data flow so you know exactly what's leaking — and how to stop it.
What the Privacy Leak Detector Finds
A data leak doesn't require a sophisticated attack. Most leaks happen quietly, through misconfigured APIs or overly generous responses. Our privacy risk scanner catches them all.
PII Exposure Detection
Detects emails, phone numbers, names, and addresses appearing in API responses, URL parameters, or page source code where they should not be accessible.
Unprotected Endpoint Analysis
Identifies API routes that return user data without requiring authentication — one of the most common causes of accidental data exposure in SaaS applications.
Overly Verbose API Responses
Flags API responses that include internal fields — like database IDs, admin flags, or hashed passwords — that your frontend doesn't need and shouldn't expose.
Insecure Error Messages
Detects error responses that leak stack traces, database schema details, or internal file paths — information attackers use to plan more targeted attacks.
Sensitive Data in URLs
Checks whether your app places tokens, session IDs, or user identifiers in URLs — which get logged in browser history, server logs, and referrer headers.
Third-Party Data Sharing Audit
Identifies user data being sent to third-party analytics, marketing, or tracking services without proper consent controls or anonymisation.
How the Privacy Leak Detector Works
No configuration. No agent installation. Three steps to knowing exactly where your app is leaking data.
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Enter Your App URL
Paste the URL of your live app, SaaS product, or staging environment. Works with any backend language or framework.
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We Probe Your Data Flows
PrivacyReport sends a series of structured requests to your API and analyses each response for sensitive data appearing where it shouldn't. We check authentication gates, response bodies, error handlers, and URL patterns.
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Receive a Prioritised Leak Report
You get a clear report of every data exposure risk, rated by severity. Each item includes the exact endpoint, the specific data type exposed, and a plain-English description of how to fix it.
Why Detecting Data Leaks Early Matters
A data breach costs an average of $4.45 million. Catching the vulnerability that causes it costs you nothing with PrivacyReport's free scan.
Protect Your Users' Privacy
Your users share their most personal information with you. A privacy leak detector ensures that data never ends up in places it shouldn't — keeping your users' trust intact.
Avoid Regulatory Fines
GDPR, CCPA, and HIPAA all require you to protect user data. An undiscovered data exposure can result in fines that sink a startup. Scan before regulators do.
Fix Issues Before Launch Day
Discovering a data leak after you've gone viral is a PR disaster. Scan your app as part of your pre-launch checklist to ensure clean, private data handling from day one.
Understand Exactly What's Leaking
Unlike generic security tools, PrivacyReport tells you the specific data type that's exposed, the exact endpoint it's coming from, and the severity — not just that "a leak exists".
Who Needs a Privacy Leak Detector?
Any app that handles user data needs regular privacy scanning. These are the teams we most commonly help.
Frequently Asked Questions
How do apps leak data?
Apps most commonly leak data through unprotected API endpoints that return full user records, overly verbose error messages that expose database schemas, misconfigured CORS policies, API responses containing more fields than the frontend needs, and insecure logging that writes private user data to accessible log files.
What is a data exposure risk?
A data exposure risk is any part of your application where sensitive information — like user emails, passwords, payment details, or API tokens — could be seen by someone unauthorised. This includes public API endpoints, HTML source code, JavaScript bundles, server error pages, and network responses.
Can PrivacyReport detect GDPR data exposure risks?
Yes. PrivacyReport scans for Personally Identifiable Information (PII) appearing in places it shouldn't — which is directly relevant to GDPR Article 32 requirements for appropriate technical security measures. We flag emails, names, phone numbers, and identifiers exposed without proper access controls.
How often should I run a privacy leak scan?
We recommend scanning before every major release, after adding new API endpoints or third-party integrations, and at least once a month for live apps. Our continuous monitoring plan automates this entirely.
Related PrivacyReport Tools
Privacy leak detection is one piece of the puzzle. Explore our other security tools for complete app protection.
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