The incoming and outgoing traffic on the network is laid out by security logs. Not regularly checking your firewall’s security logs is similar to not watching your finances. Just as a bank statement, security logs reveal current and past issues and detail any change in firewall settings, especially with regard to traffic analysis and risk assessment, most used and least used rules which can be removed eventually. Thus, the firewall and network performance can be optimized considerably which is another step towards enhanced efficiency. Sometimes, the intangible becomes reality: if a data breach or cyber-attack has happened, security logs will be your first point of contact. Backtracing the information available can help preventing future attacks and is also vital for investigation and, in the event of loss, insurance reasons.