ALTCHA is a next-generation CAPTCHA and spam protection system. It offers a privacy-first, globally compliant, and accessible alternative to traditional CAPTCHAs.

Features:

• Privacy Compliance: ALTCHA protects against spam and abuse without tracking users. It is designed to be fully compliant with major data protection regulations worldwide, including GDPR, HIPAA, CCPA, PIPEDA/CPPA, LGPD, DPDPA, and PIPL. It uses no cookies, no tracking, and no external servers for core functions, ensuring user privacy.

• Accessibility: It is built with accessibility in mind, adhering to WCAG 2.2 Level AA guidelines and meeting requirements under the European Accessibility Act (EAA). This ensures it works with screen readers and assistive technologies.

• User Experience: ALTCHA aims to provide a frictionless and frustration-free experience for real users. It primarily uses a Proof-of-Work (PoW) verification method, eliminating the need for visual puzzles.

• Technology: It works quietly in the background, using machine learning and pattern recognition to block abuse. It offers adaptive protection that dynamically responds to emerging threats.

• Challenge Mechanisms: The system defaults to PoW. For cases flagged as high-risk, it escalates to a secure code challenge. This code challenge includes an audio component, which is also available in multilingual versions (48+ languages supported, including RTL).

• Robust Security Features (ALTCHA Sentinel): The advanced ALTCHA Sentinel platform offers a range of security features including Bot Detection, Proxy/TOR Detection, Email Verification, Rate Limiting, IP Reputation checks, IP Geo Fencing, Language Detection, Text Classification, and secure form submissions. It provides comprehensive protection.

• Self-Hosted and Customizable: ALTCHA is a self-hosted solution, giving users full control over their spam protection system. It is fully customizable, allowing tailoring of the challenge mechanism to specific needs while maintaining compliance.

• Open Source: The core ALTCHA widget and integration libraries are open-source under the MIT license, offering a free base solution. ALTCHA Sentinel is the optional commercial platform for enhanced security needs.

• Easy Integration: It offers straightforward integration with various languages, frameworks, and CMS platforms.

In essence, ALTCHA provides a secure, compliant, and user-friendly way to protect websites, apps, and services against spam, bots, and automated threats by focusing on privacy, accessibility, and advanced detection methods.