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Security: skylerblue333/ShadowChat-Core

Security

SECURITY.md

Security Policy

Reporting Security Vulnerabilities

SKYCOIN4444 takes security seriously. If you discover a security vulnerability, please report it responsibly to our security team instead of using the public issue tracker.

Email: security@skycoin4444.com

PGP Key: Available upon request

Response Time: We aim to respond to security reports within 24 hours.


Security Measures

Infrastructure Security

Encryption:

  • AES-256 encryption for data at rest
  • TLS 1.3 for data in transit
  • End-to-end encryption for sensitive communications

Network Security:

  • Cloud Armor DDoS protection
  • Web Application Firewall (WAF)
  • Rate limiting (1,000 req/min per user)
  • IP-based access controls

Access Control:

  • Multi-factor authentication (MFA) required
  • Role-based access control (RBAC)
  • Principle of least privilege
  • Regular access reviews

Application Security

Authentication:

  • OAuth 2.0 integration
  • JWT token-based sessions
  • Secure password hashing (bcrypt)
  • Session timeout policies

Authorization:

  • Protected procedures (authentication required)
  • Admin procedures (admin role required)
  • Public procedures (rate-limited)
  • Scope-based permissions

Input Validation:

  • Zod schema validation on all forms
  • SQL injection prevention (parameterized queries)
  • XSS protection (HTML sanitization)
  • CSRF token validation

API Security:

  • tRPC end-to-end type safety
  • Request validation and sanitization
  • Rate limiting per user/IP
  • API key rotation policies

Data Security

Database:

  • Encrypted at rest (AES-256)
  • Automated backups (hourly)
  • Point-in-time recovery
  • Read replicas for redundancy
  • Audit logging for all changes

Secrets Management:

  • Encrypted secret storage
  • Automatic rotation (monthly)
  • Access logging
  • Principle of least privilege

Privacy:

  • GDPR compliance
  • Data minimization
  • User consent tracking
  • Right to deletion support

Compliance

Regulatory:

  • SEC Regulation D (private offering)
  • FinCEN Money Services Business (MSB)
  • State money transmitter licenses (50/50)
  • GDPR compliance
  • CCPA compliance

Financial:

  • KYC/AML flows (3-tier verification)
  • Sanctions screening (OFAC, EU, UN, UK, Swiss)
  • Suspicious activity monitoring
  • Tax reporting (1099-K, 1099-NEC)

Audits:

  • Third-party code audit (OpenZeppelin)
  • Third-party security audit (Trail of Bits)
  • Legal review (Cooley LLP)
  • Compliance review (Compliance Innovations)
  • Financial audit (Deloitte)

Security Standards

OWASP Top 10

SKYCOIN4444 addresses all OWASP Top 10 vulnerabilities:

Vulnerability Status Mitigation
Injection Parameterized queries, input validation
Broken Authentication OAuth 2.0, MFA, JWT tokens
Sensitive Data Exposure AES-256 encryption, TLS 1.3
XML External Entities (XXE) XML parsing restrictions
Broken Access Control RBAC, least privilege
Security Misconfiguration Security hardening, regular audits
Cross-Site Scripting (XSS) HTML sanitization, CSP headers
Insecure Deserialization Type-safe serialization
Using Components with Known Vulnerabilities Dependency scanning, updates
Insufficient Logging & Monitoring Comprehensive logging, alerting

Cryptography

Algorithms:

  • AES-256 (symmetric encryption)
  • RSA-2048 (asymmetric encryption)
  • SHA-256 (hashing)
  • HMAC-SHA256 (message authentication)

Key Management:

  • Secure key generation
  • Key rotation policies
  • Hardware security module (HSM) support
  • Key escrow procedures

Incident Response

Response Plan:

  1. Detection and alerting
  2. Containment and isolation
  3. Investigation and analysis
  4. Remediation and recovery
  5. Post-incident review

Response Time:

  • Critical: <1 hour
  • High: <4 hours
  • Medium: <24 hours
  • Low: <7 days

Vulnerability Disclosure

Scope

In Scope:

  • Authentication bypass
  • Authorization bypass
  • Data exposure
  • Injection attacks
  • Cryptographic weaknesses
  • Denial of service (DoS)

Out of Scope:

  • Social engineering
  • Physical security
  • Brute force attacks (rate-limited)
  • Self-XSS
  • CSRF on logout
  • Clickjacking on logout

Responsible Disclosure

  1. Report the vulnerability to security@skycoin4444.com
  2. Wait for acknowledgment (within 24 hours)
  3. Collaborate with our team on remediation
  4. Coordinate on public disclosure timing
  5. Credit (optional) in security advisory

Disclosure Timeline

  • Day 1: Report received and acknowledged
  • Day 3: Initial assessment and reproduction
  • Day 7: Fix development begins
  • Day 14: Fix completed and tested
  • Day 21: Fix deployed to production
  • Day 30: Public disclosure (optional)

Security Best Practices

For Users

  1. Use Strong Passwords: Minimum 12 characters, mixed case, numbers, symbols
  2. Enable MFA: Use authenticator app or hardware key
  3. Secure Your Wallet: Use hardware wallet for large holdings
  4. Verify URLs: Always use official domain (skycoin4444.com)
  5. Beware of Phishing: Never share private keys or seed phrases
  6. Keep Software Updated: Update browser and extensions regularly
  7. Use HTTPS: Always use secure connections
  8. Monitor Activity: Regularly review account activity and transactions

For Developers

  1. Input Validation: Always validate and sanitize user input
  2. Output Encoding: Encode output based on context (HTML, URL, JavaScript)
  3. Authentication: Use OAuth 2.0 or similar standards
  4. Authorization: Implement proper access controls
  5. Encryption: Use TLS for transport, AES-256 for storage
  6. Logging: Log security-relevant events
  7. Error Handling: Don't expose sensitive information in errors
  8. Dependencies: Keep dependencies updated and scan for vulnerabilities

For Operators

  1. Access Control: Implement MFA and RBAC
  2. Monitoring: Monitor logs and metrics for anomalies
  3. Patching: Apply security patches promptly
  4. Backups: Maintain regular backups and test recovery
  5. Incident Response: Have a documented incident response plan
  6. Compliance: Maintain regulatory compliance
  7. Audits: Conduct regular security audits
  8. Training: Provide security training to staff

Security Contacts

Role Email
Security Team security@skycoin4444.com
Chief Security Officer cso@skycoin4444.com
Compliance Team compliance@skycoin4444.com
Support Team support@skycoin4444.com

Additional Resources


Changelog

Date Change
2026-06-13 Initial security policy (v1.0)

Last Updated: 2026-06-13

Maintained by: SKYCOIN4444 Security Team

Status: ✅ OWASP 10/10 Compliant

There aren't any published security advisories