StuSec
Zero-Knowledge Account, Password & Payment Security Breach Checker
Verify account credentials and payment card exposures against 14.8B+ data breach records with client-side Zero-Knowledge privacy, SHA-1 K-Anonymity compliance, and AI threat diagnostics.
Account & Password Security Inspector
Verify if your login credentials on a specific website, app, or service have been exposed.
Enterprise Compliance & Standards
SOC 2 Type II Audited
AICPA Trust Services
GDPR / CCPA Compliant
EU / US Privacy Shield
FIDO Alliance Standard
WebAuthn / Passkeys
ISO/IEC 27001 Certified
ISMS Verification
Threat Intelligence Knowledge Base
Frequently Asked Questions & Threat Protection
Learn how to safeguard your digital identity, audit compromised accounts, and monitor personal data exposures.
Common Threat & Breach Search Queries
personal data leak checkerdata breach lookupaccount breach checkeremail exposure checkercredit card leak checkercompromised password checkerleaked credentials lookupfinancial data breach monitoringpersonal information exposure scancheck if my account was breachedonline privacy breach checkerstolen credentials checker