Security Policy

We are committed to protecting the confidentiality, integrity, and availability (CIA) of all data entrusted to Us. Given that Our Platform handles sensitive educational data — including data of minor students — We apply security measures that meet or exceed industry standards for EdTech platforms.

Security Principles:

• Defense in Depth — Multiple layers of security controls at every level
• Least Privilege — Users and systems are granted only the minimum access required
• Zero Trust — Every request is authenticated and authorized, regardless of origin
• Data Minimization — We collect and retain only the data necessary for Platform functionality
• Transparency — This document openly describes Our security practices

2.1 Cloud Infrastructure

The Platform is hosted on enterprise-grade cloud infrastructure:

2.2 Server Hardening

• All servers run on managed, auto-patched cloud infrastructure
• No direct SSH access to production servers from the public internet
• All administrative access is through secure, authenticated cloud consoles with MFA
• Unused ports and services are disabled
• Operating system and runtime environments are kept up-to-date

2.3 Environment Isolation

• Production, Staging, and Development environments are strictly isolated
• Production credentials and API keys are never used in non-production environments
• Environment variables and secrets are managed through secure secret management services, never committed to source code

3.1 Secure Development Practices

• Code reviews are required for all changes to the main codebase
• Security-sensitive code undergoes additional review
• Dependencies are regularly audited for known vulnerabilities using automated tools (npm audit, Snyk)
• We follow the OWASP Top 10 guidelines for web application security

3.2 Protection Against Common Attacks

3.3 Security Headers

All web responses include the following security headers:

4.1 Encryption in Transit

• All data transmitted between Users and the Platform is encrypted using TLS 1.2 or higher
• HTTPS is enforced across all domains and sub-domains (classgrid.in, *.classgrid.in)
• HTTP Strict Transport Security (HSTS) is enabled with preloading
• API-to-database connections use encrypted TLS connections
• Internal service-to-service communication uses encrypted channels

4.2 Encryption at Rest

• Database (MongoDB Atlas): All data is encrypted at rest using AES-256 encryption
• File Storage (Supabase): All uploaded files are encrypted at rest using server-side encryption (AES-256)
• Backups: All database backups are encrypted at rest

4.3 Password Security

• User passwords are never stored in plain text
• Passwords are hashed using bcrypt with a minimum of 10 salt rounds
• We enforce minimum password complexity requirements
• Password reset tokens are cryptographically random, single-use, and expire within 1 hour

5.1 Authentication Methods

• Email + Password — Standard authentication with bcrypt-hashed passwords
• Google Sign-In — OAuth 2.0 based authentication via Google Identity
• JWT Tokens — Stateless authentication tokens with configurable expiration

5.2 Token Security

• Access Tokens (JWT): Short-lived (1 hour default), signed with a secure secret
• Refresh Tokens: Longer-lived (30 days), stored as HTTP-only cookies, rotated on use
• Tokens contain only the minimum claims necessary (user ID, role, organization ID)
• Token secrets are rotated periodically
• Revoked tokens are blacklisted

5.3 Role-Based Access Control (RBAC)

The Platform enforces strict RBAC at both the API and UI levels:

• All API endpoints validate the requesting User's role before executing
• Role escalation is not possible through the API
• Org Admins can only access data within their own organization

5.4 Brute Force Protection

• Login attempts are rate-limited (maximum 5 failed attempts per 15-minute window)
• After exceeding the limit, the account is temporarily locked for 15 minutes
• Repeated lockouts trigger security notifications via email
• CAPTCHA may be presented after multiple failed login attempts

5.5 Session Management

• Sessions are invalidated upon password change
• Users can view and revoke active sessions
• Inactive sessions expire automatically
• Logout clears all tokens and session data from the client

6.1 API Authentication

• All API endpoints (except public tenant resolution) require a valid JWT token
• Tokens are validated on every request, checking expiration, signature, and claims
• Public endpoints (tenant website resolution) are read-only and do not expose sensitive data

6.2 Rate Limiting

• API requests are rate-limited per user and per IP address
• Standard limits: 100 requests per minute per authenticated user
• Public endpoints: 30 requests per minute per IP address
• File upload endpoints: 10 requests per minute per user
• Rate-limited responses return HTTP 429 with appropriate retry-after headers

6.3 Input Validation

• All API inputs are validated against predefined schemas (using Joi/Zod or Mongoose validation)
• Request body size limits are enforced (default: 10MB for standard requests, 50MB for file uploads)
• File uploads are validated for type (MIME type checking), size, and content
• URL parameters and query strings are sanitized

6.4 API Versioning

• APIs are versioned to ensure backward compatibility
• Deprecated API endpoints are announced with at least 90 days notice

7.1 Secure Storage

• Authentication tokens are stored in platform-native secure storage:
• Android: Android Keystore System
• iOS: iOS Keychain Services
• Sensitive data is never stored in plain text on the device

7.2 Network Security

• The mobile app communicates exclusively over HTTPS
• Certificate pinning is implemented to prevent man-in-the-middle attacks
• The app validates server certificates before transmitting data

7.3 App Security

• The app does not log sensitive information (tokens, passwords, personal data) to device logs
• Debug features are disabled in production builds
• The app enforces minimum OS version requirements to ensure availability of security patches
• ProGuard/R8 obfuscation is applied to Android builds

7.4 Permissions

• The app requests only the minimum permissions necessary for its features
• Permissions are requested at the time of use, not at install time
• The app functions with reduced capability if optional permissions are denied

8.1 MongoDB Atlas Security

• Hosted on MongoDB Atlas with enterprise-grade security
• Network Access: Database access is restricted to known, allowlisted IP addresses and VPCs
• Authentication: Database access requires authenticated credentials (not default admin accounts)
• Encryption: AES-256 encryption at rest, TLS encryption in transit
• Audit Logging: All database access and operations are logged
• Automatic Patching: MongoDB Atlas automatically applies security patches

8.2 Data Validation

• All data is validated at the application layer (Mongoose schemas) before being written to the database
• Database queries use parameterized inputs to prevent NoSQL injection
• Indexes are used to optimize query performance and prevent denial-of-service through slow queries

8.3 Access Controls

• Database credentials are stored in environment variables, never in source code
• Application-level database users have the minimum required permissions
• Direct database access is restricted to authorized DevOps personnel only, with full audit logging

9.1 Supabase Storage

• Files are stored in Supabase Storage (backed by AWS S3)
• Access Control: Storage buckets use row-level security (RLS) policies
• Public Buckets: Only tenant website assets (gallery images, hero images) are in public buckets
• Private Buckets: Student documents, PDFs, assignments, and institutional files are in private, authenticated buckets
• Encryption: Server-side encryption (AES-256) for all stored files

9.2 File Upload Security

• Uploaded files are validated for:
• File type: Only allowed MIME types are accepted (images: jpg/png/webp, documents: pdf/doc/docx, video: mp4)
• File size: Maximum limits enforced (images: 5MB, documents: 25MB, hero video: 20MB)
• File content: Magic byte validation to prevent disguised malicious files
• Uploaded files are scanned for malware where feasible
• File names are sanitized and stored with generated UUIDs to prevent path traversal attacks

9.3 Download Security

• Private files require valid authentication to download
• Signed URLs with expiration times are used for temporary access to private files
• Download links cannot be shared or used after expiration

10.1 DDoS Protection

• The Platform is served through CDN (Vercel Edge Network / Cloudflare) with built-in DDoS mitigation
• Layer 3/4 attacks are automatically mitigated by the CDN provider
• Layer 7 attacks are mitigated through rate limiting and request filtering

10.2 Firewall and Network Controls

• Web Application Firewall (WAF) rules are configured to block common attack patterns
• Geolocation-based blocking is available if needed
• All inbound traffic is filtered and monitored

10.3 DNS Security

• DNS is managed through providers with DNSSEC support
• DNS records are monitored for unauthorized changes

11.1 Personnel Security

• All team members undergo security awareness training
• Access to production systems is granted based on job responsibility and revoked upon role change or departure
• All team members are bound by Non-Disclosure Agreements (NDAs) and confidentiality clauses
• The principle of least privilege is enforced for all internal access

11.2 Access Management

• Multi-Factor Authentication (MFA) is mandatory for all team members accessing production systems
• Access reviews are conducted periodically to ensure ongoing necessity
• Privileged access (database, cloud console) is limited to designated DevOps personnel
• All administrative actions are logged and auditable

11.3 Physical Security

• We do not operate our own data centers; physical security is managed by Our cloud providers (Google Cloud, MongoDB Atlas, AWS)
• All cloud providers maintain SOC 2 Type II compliance, which includes physical security controls
• Company devices used for production access have full-disk encryption enabled

12.1 Backup Strategy

• Continuous Backups: MongoDB Atlas provides continuous backups with point-in-time recovery
• Snapshot Frequency: Full database snapshots every 6 hours
• Retention: Backups retained for 30 days (rolling)
• Backup Encryption: All backups are encrypted at rest using AES-256

12.2 Disaster Recovery

• Recovery Point Objective (RPO): Maximum 1 hour of data loss in worst-case scenario
• Recovery Time Objective (RTO): Platform restoration within 4 hours of a critical incident
• Geographic Redundancy: Database replicas are maintained across multiple availability zones
• Regular Testing: Disaster recovery procedures are tested periodically

12.3 Data Restoration

• In the event of accidental data deletion by a Tenant Organization, restoration from backup may be possible within the backup retention window
• Data restoration requests should be submitted to support@classgrid.in immediately upon discovery of data loss

13.1 Incident Response Plan

We maintain a documented incident response plan that covers:

• Detection: Automated monitoring and alerting for security events
• Triage: Classification of incidents by severity (Critical, High, Medium, Low)
• Containment: Immediate actions to prevent further damage
• Eradication: Removal of the root cause
• Recovery: Restoration of affected services and data
• Post-Incident Review: Analysis and documentation of lessons learned

13.2 Incident Severity Levels

13.3 Breach Notification

In the event of a confirmed data breach:

• Affected Users: Notified within 72 hours of confirmation, with details of what data was affected and recommended actions
• Data Protection Board of India: Notified as required under the DPDP Act, 2023
• Tenant Organizations: Notified immediately if institutional data is involved
• Law Enforcement: Notified if criminal activity is suspected

13.4 Communication

• Security incidents are communicated transparently
• A public status page will display real-time Platform availability and incident updates
• Post-incident reports are shared with affected Tenant Organizations

14.1 Dependency Scanning

• Automated dependency scanning is performed regularly using tools like `npm audit`
• Critical and high-severity vulnerabilities in dependencies are patched within 72 hours
• Dependencies are kept up-to-date with automated update monitoring

14.2 Code Security

• Static Application Security Testing (SAST) is integrated into the development workflow
• Security-focused code reviews for sensitive modules (authentication, authorization, data access)
• Regular manual security reviews of critical Platform components

14.3 Penetration Testing

• The Company plans to conduct annual penetration testing by qualified third-party security firms
• Critical findings are remediated before the next release
• Results are used to continuously improve security posture

14.4 Patch Management

• Security patches for operating systems and libraries are applied within defined SLAs:
• Critical vulnerabilities: Within 24 hours
• High vulnerabilities: Within 72 hours
• Medium vulnerabilities: Within 7 days
• Low vulnerabilities: Within 30 days

15.1 Regulatory Compliance

The Platform is designed to comply with:

• Information Technology Act, 2000 — India's primary cyber law
• IT (Reasonable Security Practices) Rules, 2011 — Standards for handling sensitive personal data
• Digital Personal Data Protection Act, 2023 (DPDP Act) — India's comprehensive data protection law
• Google Play Developer Program Policies — For mobile app distribution
• Apple App Store Guidelines — For iOS app distribution
• PCI DSS — Payment card data is handled by PCI DSS Level 1 certified Razorpay; the Platform never stores card data

15.2 Educational Regulatory Support

The Platform helps Tenant Organizations comply with:

• NAAC / AICTE disclosure requirements — Through mandatory disclosure pages on tenant websites
• State Board requirements — Through structured data management and reporting
• RTI-related obligations — Through publicly accessible institutional information on tenant websites

15.3 Audit Readiness

• All security-relevant events are logged and retained for audit purposes
• Access logs, authentication events, and data modification events are maintained
• Logs are stored in tamper-evident storage with controlled access

16.1 Logical Isolation

• Each Tenant Organization's data is logically isolated using Organization IDs in all database queries
• API endpoints enforce organization-level access control — a User from Organization A cannot access Organization B's data
• Tenant website content is isolated by `org_slug` in the database

16.2 Access Boundaries

• Faculty can only access data for classes/sections they are assigned to
• Students can only access their own academic records
• Parents can only access their ward's data
• Org Admins can only manage data within their own organization

16.3 Testing

• Data isolation is tested as part of the development process
• Access control tests verify that cross-tenant data access is not possible through any API endpoint

17.1 Vendor Assessment

We evaluate the security posture of all third-party service providers before integration. Key criteria include:

• SOC 2 Type II or equivalent certification
• Data encryption capabilities (at rest and in transit)
• Access control and authentication mechanisms
• Incident response capabilities
• Data processing agreements and privacy commitments

17.2 Current Third-Party Security Status

17.3 Supply Chain Security

• Third-party libraries and packages are sourced from official registries (npm)
• Package integrity is verified using lockfiles and checksums
• Critical dependencies are pinned to specific versions

We recommend all Users follow these security best practices:

18.1 For All Users

• Use a strong, unique password (minimum 8 characters, mix of uppercase, lowercase, numbers, and symbols)
• Do not share Your login credentials with anyone
• Log out after each session, especially on shared devices
• Report suspicious activity to Your Org Admin or support@classgrid.in immediately
• Keep Your device's operating system and browser updated

18.2 For Org Admins

• Regularly review user accounts and deactivate accounts of users who have left the institution
• Use strong admin passwords and change them periodically
• Limit Org Admin access to trusted personnel only
• Review and audit faculty access to student data
• Ensure institutional devices used to access the Platform have up-to-date antivirus software

18.3 For Faculty

• Do not access student data on unsecured or public Wi-Fi networks without a VPN
• Lock Your device when stepping away from it
• Do not download student personal data to personal devices
• Report any suspected data breach or unauthorized access immediately

19.1 Reporting Security Vulnerabilities

We welcome responsible disclosure of security vulnerabilities. If You discover a security issue in the Platform, please report it to Us:

• Email: security@classgrid.in
• Subject Line: "Security Vulnerability Report — [Brief Description]"

19.2 What to Include

• A description of the vulnerability
• Steps to reproduce the issue
• Potential impact assessment
• Your contact information (optional but appreciated)

19.3 Our Commitment

• We will acknowledge receipt of Your report within 48 hours
• We will investigate the vulnerability within 7 days
• We will provide updates on remediation progress
• We will credit You (if desired) in Our security acknowledgments
• We will not take legal action against researchers who follow responsible disclosure guidelines

19.4 Rules of Engagement

• Do not access or modify data belonging to other Users
• Do not perform denial-of-service testing
• Do not use social engineering or phishing attacks
• Do not publicly disclose the vulnerability before We have had a reasonable time to address it (90 days)

For security-related inquiries, vulnerability reports, or concerns:

Classgrid Technologies — Security Team

• Security Reports: security@classgrid.in
• General Support: support@classgrid.in
• Privacy Inquiries: privacy@classgrid.in
• Phone: +91 8623947038 / +91 8149277038
• Address: Akurdi Railway Station Road, Sector No. 26, Pradhikaran, Nigdi, Pimpri-Chinchwad, Maharashtra 411044, India

*This Security Policy is reviewed and updated periodically. The Company reserves the right to modify this Policy at any time.*

*© 2026 Classgrid Technologies. All rights reserved.*