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Security Best Practices

Comprehensive security guidelines for all ARUKZ DIGITAL projects and operations.

Overview​

Security is paramount in all our work. These best practices ensure we protect client data, maintain system integrity, and comply with security standards.

Purpose: Ensure security across all projects
Owner: Security & Operations Team

Core Security Principles​

Security Fundamentals​

  1. Defense in Depth: Multiple layers of security
  2. Least Privilege: Minimum necessary access
  3. Secure by Default: Security built-in from start
  4. Regular Updates: Keep systems current
  5. Encryption: Protect data in transit and at rest
  6. Monitoring: Continuous security monitoring

Access Control​

Authentication​

Password Requirements:

  • Minimum 12 characters
  • Mix of uppercase, lowercase, numbers, symbols
  • No dictionary words
  • Change every 90 days
  • No password reuse (last 5)

Multi-Factor Authentication:

  • Required for all critical systems
  • SMS, authenticator app, or hardware token
  • Backup codes stored securely

Account Management:

  • Unique accounts per user
  • No shared credentials
  • Disable inactive accounts (30 days)
  • Remove access immediately upon termination

Authorization​

Access Levels:

  • Read-only
  • Read-write
  • Admin
  • Super admin

Access Control:

  • Role-based access control (RBAC)
  • Principle of least privilege
  • Regular access reviews
  • Document all access grants

Data Security​

Data Classification​

Public: Can be freely shared Internal: For company use only Confidential: Restricted access Highly Confidential: Strictly controlled

Data Protection​

Encryption:

  • Data at rest: AES-256
  • Data in transit: TLS 1.2+
  • Database encryption
  • Backup encryption

Data Handling:

  • Classify all data
  • Encrypt sensitive data
  • Secure data transfer
  • Secure data disposal
  • Regular backups

Application Security​

Secure Development​

Code Security:

  • Input validation
  • Output encoding
  • Parameterized queries
  • Error handling
  • Security headers

Common Vulnerabilities:

  • SQL Injection
  • Cross-Site Scripting (XSS)
  • Cross-Site Request Forgery (CSRF)
  • Insecure Direct Object References
  • Security Misconfiguration

Security Testing:

  • Code review
  • Static analysis
  • Dynamic analysis
  • Penetration testing
  • Vulnerability scanning

Network Security​

Network Protection​

Firewall:

  • Configure properly
  • Regular rule review
  • Log all traffic
  • Block unnecessary ports

VPN:

  • Required for remote access
  • Strong encryption
  • Multi-factor authentication
  • Activity logging

Wi-Fi Security:

  • WPA3 encryption
  • Strong passwords
  • Hidden SSID
  • MAC filtering
  • Guest network isolation

Incident Response​

Security Incidents​

Incident Types:

  • Data breach
  • Malware infection
  • Unauthorized access
  • DDoS attack
  • Phishing attack

Response Steps:

  1. Identify and contain
  2. Assess impact
  3. Notify stakeholders
  4. Remediate
  5. Document
  6. Learn and improve

Incident Report:

  • Date and time
  • Description
  • Impact assessment
  • Actions taken
  • Lessons learned

Compliance​

Regulatory Compliance​

GDPR:

  • Data protection
  • User consent
  • Right to erasure
  • Data portability
  • Privacy by design

Industry Standards:

  • ISO 27001
  • SOC 2
  • PCI DSS (if applicable)

Security Checklist​

Daily:

  • Monitor security alerts
  • Review access logs
  • Check system status

Weekly:

  • Security updates
  • Backup verification
  • Access review

Monthly:

  • Vulnerability scan
  • Security training
  • Policy review

Quarterly:

  • Security audit
  • Penetration test
  • Incident review

Last Updated: January 2026
Version: 1.0
Owner: ARUKZ DIGITAL Security Team

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