About LoginGuards
LoginGuards is dedicated to protecting digital identities through privacy-first technology. We provide real-time password breach detection APIs that help developers and enterprises keep user accounts secure without compromising data privacy.
Our Story
Fueled by purpose
LoginGuards began with a vision to build cybersecurity products that combine robust protection with frictionless user experiences. We launched the platform to give development teams an API-first toolkit for defending sign-in flows against credential-based attacks.
Built and operated in the United States, LoginGuards brings deep authentication expertise to security teams everywhere through a reliable, enterprise-ready REST API.
Our Mission
Security without compromise
Our mission is simple: stop compromised passwords before they lead to compromise. By combining large-scale breach intelligence with modern hashing and anonymization techniques, LoginGuards delivers the power of enterprise-grade security in a developer-friendly API.
We believe cybersecurity should be accessible, scalable, and trustworthy. Our focus is delivering innovative, efficient solutions that slot into existing products with minimal lift while meeting modern compliance and encryption standards.
LoginGuards empowers engineering teams to integrate high-assurance password and credential checks in just a few lines of code.
API Overview
Enterprise-grade endpoints
Our REST API delivers real-time validation and threat intelligence to stop compromised credentials before they can be abused. Each request is secured with Azure AD-issued bearer tokens for authenticated, encrypted communication.
- /check/plain — validate plaintext passwords against breach intelligence in milliseconds.
- /check/sha1 — perform secure lookups using SHA-1 hashed passwords.
- /check/sha512_30 — verify 30-character SHA-512 hash fragments for additional privacy.
Our Commitment
What sets LoginGuards apart
- Advanced, developer-friendly security APIs built to integrate quickly across stacks and environments.
- Enterprise-grade authentication and encryption with Azure AD bearer tokens safeguarding every request.
- Continuous innovation and protection that evolves alongside emerging threats, ensuring your users stay protected.
LoginGuards — “Guard Your Logins. Secure Your World.”