LGPD

Scope

SCaptcha limits processing to security metadata and keeps verification inside your hosting environment. You control retention, lawful basis, and disclosures.

This page maps SCaptcha 2.3.0 behavior to the named framework. It is not a certification or legal advice.

Legal basis and transparency

Most operators rely on legitimate interest for abuse prevention. Document this basis in your privacy notice.

Proof-of-Work and behavior checks do not require personal data to function.

Data minimization and cookies

The widget avoids tracking cookies. Under-Attack Mode uses a short-lived cookie only for gate access.

Logging is optional and can be disabled to reduce data collection.

International transfers and vendors

Self-hosted processing keeps data within your infrastructure by default.

If you enable external proxy intelligence, evaluate cross-border transfer requirements and update your documentation.

Implementation checklist

Limit log retention, restrict access to security data, and document optional checks.

Review country or ASN blocking rules to avoid excessive processing.

SCaptcha 2.3.0 behavior

Each challenge uses its own cryptographically random 32-byte salt. Your WoltLab installation validates the salt, hash, algorithm, answer, and HMAC against the issuing session. The challenge expires after 60 seconds and does not require an external CAPTCHA provider.

This option is off by default. If you enable it, SCaptcha sends the visitor's public IP address to proxycheck.io for proxy, VPN, or Tor evidence. SCaptcha 2.3.0 sends tag=0 by default; administrators can opt in to provider logging. The IP address is transmitted for every lookup either way.

A pre-submit marker and the optional text/audio proof are valid for 5 minutes. Under-Attack mode uses a signed, user-agent-bound access cookie for 5 to 30 minutes; the default is 10. Sentinel can store a server-side rejection in a separate signed cookie for 10 minutes. Sentinel itself is off by default.

Request analytics are on by default. Logs can contain linkable operational data, including IP address, user agent, request, network and location fields, reasons, and submitted browser telemetry. Retention defaults to 90 days and can be set from 1 to 3,650 days. Turning analytics off stops new collection but does not erase existing rows or exports.

What operators need to review

Document enabled features, limit access to security logs, and assess optional external services separately. SCaptcha does not replace legal review or accessibility testing of the complete website.

Enable only the options you need. Update privacy and cookie notices, restrict access to analytics and logs, and test the actual form integration before launch.