Worked on enhancing log parsing robustness for the crowdsecurity/hub repository, specifically targeting authentication event parsing in Apache Guacamole logs. Addressed an issue where source IP addresses were not always enclosed in brackets, which previously led to misparsed authentication attempts. Updated the apache-guacamole-logs.yaml configuration using YAML and Grok Patterns to make IP brackets optional, thereby improving the accuracy of log analysis and reducing false negatives in security monitoring. Delivered the fix as a single, traceable commit linked to the relevant issue, demonstrating a focused approach to bug resolution and a clear understanding of log parsing and configuration management techniques.