Official DirectoryLast updated: October 2026

Cookie Notice, Client Storage & Anti-Scraping Policy

Privacy-First Architecture & Data Integrity

Summary: lockin. operates strictly on privacy-first infrastructure. We only use essential cryptographic session cookies to protect your academic records. We do not use third-party tracking pixels, advertising networks, or data brokers.

1. Cookies & Local Storage Specification

The following table lists all items stored in your browser by lockin.:

Identifier	Type	Technical Purpose	Lifespan
`sb-*-auth-token`	Strictly Necessary (Cookie)	Cryptographically signed JWT session token. Configured with `HttpOnly`, `SameSite=Lax`, and `Secure` flags to prevent cross-site leakage.	30 days or until logout
`sb-*-auth-token-code-verifier`	Strictly Necessary (Cookie)	PKCE cryptographic verifier for passwordless login handshakes.	Transient (cleared post-auth)
`lockin-theme`	Functional Preference (Cookie)	Preserves your chosen color theme (Light / Dark) across page visits.	1 year
`lockin-notice-v1`	Preference (Local Storage)	Remembers acknowledgment of critical platform notices.	Persistent until cleared

2. Intellectual Property, Anti-Copy & Anti-Scraping Protection

All proprietary learning materials, question banks, simulated 3D WebGL apparatuses, interactive lesson curricula, and examination algorithms on lockin. are protected under Indian and International Copyright & Intellectual Property laws.

Prohibition of Automated Extraction: Automated data harvesting, web scraping, crawlers, offline mirroring, and unauthorized API extraction of lockin. content are strictly prohibited.
Content Integrity & Watermarking: Systematic copying, reproduction, re-hosting, framing, or reselling of practice papers, questions, and 3D simulation models will result in immediate permanent account termination and legal remedies under the Copyright Act, 1957 and Information Technology Act, 2000.
Authorized Educational Use: Students and educators are granted a personal, revocable, non-exclusive, non-transferable license to access learning modules for individual, non-commercial study only.

3. Third-Party Trackers & Telemetry

To ensure distraction-free studying and zero commercial surveillance:

No Commercial Tracking: We never embed Facebook Pixel, Google AdSense, telemetry beacons, or third-party behavioral scripts.
Self-Hosted Typography: Fonts and UI assets are served directly from our domain to protect your IP address.
Privacy-Enhanced Video Embeds: Curated lecture references use privacy-hardened youtube-nocookie.com embeds.

4. Managing Your Cookie Preferences

Essential session cookies are necessary for core authentication and security under DPDP Act / GDPR regulations. You can inspect or clear browser cookies at any time via your browser settings.