Privacy Policy
Last Updated: September 2026
Published by SystemRootMedia Legal & Security Team • Last updated: September 29, 2026
The PrivacyKit Privacy Policy establishes strict zero-knowledge data protection across all tools on privacykit.tech. In compliance with GDPR, NIST, and OWASP privacy guidelines, PrivacyKit processes password strength calculations and breach prefix comparisons entirely client-side. Plaintext passwords, master credentials, and unhashed personal data are never stored, logged, or sent to our servers.
What Are PrivacyKit's Core Privacy and Data Minimization Guarantees?
Welcome to PrivacyKit. Your privacy is fundamental to our architecture. This Privacy Policy explains how we collect, process, and protect information when you use our website and security tools.
By accessing PrivacyKit, you benefit from our zero-knowledge operational model designed to protect your anonymity by default.
How PrivacyKit Data Handling Compares to Traditional Online Tools
| Data Category | PrivacyKit Zero-Knowledge Model | Standard Web Utilities |
|---|---|---|
| Plaintext Passwords | Never transmitted; evaluated 100% in local browser memory | Transmitted over network to backend server API |
| Email & Breach Queries | Only 5-character SHA-1 prefix sent via k-Anonymity | Full email or complete password hash queried and logged |
| User Account Credentials | No accounts, registration, or cookies required to use tools | Mandatory registration to capture user email and profile |
| Server Activity Logs | Zero persistent activity logs; automated ephemeral purging | Indefinite storage for behavioral ad targeting |
What Technical Information Does PrivacyKit Collect (and What Is Excluded)?
PrivacyKit is engineered around data minimization principles. Depending on the service used, limited operational telemetry may include:
- Technical metadata such as browser user agent and screen resolution for responsive rendering
- IP addresses processed ephemerally for DDoS mitigation, bot prevention, and IP lookup resolution
- Inquiries voluntarily submitted through our encrypted contact form
- Anonymous, aggregated performance metrics to detect site errors
How Does PrivacyKit Use Technical Information?
Information processed by PrivacyKit is strictly restricted to:
- Delivering zero-knowledge cybersecurity analysis inside your browser
- Protecting our infrastructure against automated abuse and cyber attacks
- Responding to user support inquiries and responsible vulnerability disclosures
What Cryptographic Standards Protect User Data Security?
We deploy modern defense-in-depth security measures to protect user interactions:
- Client-Side Web Cryptography: All hashing operations (SHA-1, SHA-256) execute inside your browser using the W3C Web Cryptography API.
- k-Anonymity Mathematical Model: Breach checking queries transmit only 20 bits (5 hexadecimal characters) of a hash prefix, ensuring complete mathematical unlinkability.
- Encrypted Transport: All site traffic is enforced over TLS 1.3 with HSTS preloading.
How Does PrivacyKit Comply with GDPR and Global Privacy Rights?
Under the General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA), users possess the right to access, rectify, or erase their personal data. Because PrivacyKit retains no personal user databases, user accounts, or query histories, no profiling or automated behavioral tracking occurs.
What Questions Do Users Frequently Ask About PrivacyKit Data Practices?
Does PrivacyKit ever see or store my passwords?
No. Plaintext passwords never leave your computer or phone. The Password Strength Checker runs 100% locally in your browser memory.
Does PrivacyKit share data with third-party advertisers?
No personal identifying data or security query results are ever shared, monetized, or sold to third parties.
Can I request data deletion under GDPR?
Because PrivacyKit stores zero personal account records or query logs, there is no personal profile retained on our servers to delete.
Contact Us Regarding Privacy Inquiries
If you have questions regarding this Privacy Policy or our zero-knowledge implementation, please reach out via our Contact Page.