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Network Security Checklist
Access Control and Authentication
Implement multi-factor authentication for all critical systems.
Regularly review and update user access permissions.
Use strong, unique passwords and enforce password policies.
Disable inactive user accounts and remove unnecessary accounts.
Monitor and log all access attempts, both successful and failed.
Network Security Configuration
Ensure firewalls are properly configured and regularly updated.
Segregate networks based on function and sensitivity of information.
Disable unused network services and ports.
Implement VLANs to isolate different types of traffic.
Regularly update and patch network devices and software.
Intrusion Detection and Prevention
Deploy intrusion detection and prevention systems (IDPS).
Monitor network traffic for unusual or suspicious activity.
Regularly update IDPS signatures and rules.
Conduct regular vulnerability assessments and penetration tests.
Establish and follow incident response procedures.
Data Encryption
Encrypt sensitive data both at rest and in transit.
Use strong, industry-standard encryption protocols.
Regularly update encryption keys and manage them securely.
Implement end-to-end encryption for sensitive communications.
Ensure backup data is also encrypted.
Network Monitoring and Logging
Continuously monitor network traffic and system logs.
Implement centralized logging for easier analysis and correlation.
Regularly review logs for signs of suspicious activity.
Maintain logs in a secure, tamper-proof environment.
Use automated tools to analyze logs and generate alerts.
