Secrets & Exposure
critical Severity
Free Check
Extended Secret Patterns & High-Entropy Strings
Uses Shannon entropy calculations to uncover hidden RSA private keys, JWT secrets, and bearer tokens in public assets.
Why It Matters
High-entropy strings usually represent cryptographic keys or authentication hashes that allow impersonation.
How We Check This
We analyze string entropy (> 4.5 bits/char) for base64 and hexadecimal payloads embedded in HTML and script files.
How to Fix & Implement
Copy-paste configuration blocks tailored for your web server or edge proxy.
nginx snippet
Sanitize client-side script builds during CI/CD before deployment
Frequently Asked Questions
What is Shannon entropy in security scanning?
It measures randomness. Plain English has low entropy (~2-3 bits/char), while encryption keys have high entropy (>4.5).