November 2024 monthly summary focused on delivering robust data ingestion and parsing capabilities across SEKOIA-IO/intake-formats, SEKOIA-IO/automation-library, and SEKOIA-IO/documentation. Key features delivered include: - Office 365 Email Investigations: enhanced data extraction and de-duplication, fix JSON for network message IDs, added delivery-related data fields, deduplicate entries, and parser cleanup to improve parsing efficiency. - Salesforce Data Ingestion Enhancements: added new Salesforce user_agent field, refined login event parsing to extract user names and emails, and improved user_agent handling in logs. - Azure Event Hubs Connector: reliability improvements with retry logic for receive_batch, robust error handling, configurable limits, and improved logging/closure behavior for resilient event consumption. - Microsoft Graph Client and Dependency Upgrades: client instantiation improvements and core dependency updates to stabilize stack. - Development tooling and dependency lock updates: updated tooling dependencies, excluded tests from mypy checks, and refreshed the lock file. - Documentation: Azure Event Hub documentation clarified the requirement to use unique consumer group names to prevent integration issues. Major bugs fixed include: - Log Parsing Robustness: set raise_errors to false across vendor parsers to prevent failures when input fields do not exactly match patterns. - Test Suite Stability: adjustments to test assertions and setup to ensure reliable test runs. - Rollback of Salesforce-Related Changes: reverted Salesforce-related changes to a prior stable state due to issues. Overall impact and accomplishments: - Increased data fidelity, deduplication, and reliability of ingestion across O365, Salesforce, and Azure Event Hubs. - Reduced CI/test flakiness and tightened developer experience through tooling upgrades and documentation clarifications. - Enabled faster, more confident investigations and data-driven insights with cleaner logs and better parsing resilience. Technologies/skills demonstrated: - Python-based data parsing and ETL improvements, robust error handling, enhanced observability and logging, CI/test reliability efforts, mypy/black formatting, and dependency management for stability and security.

Month: 2024-10. Delivered a targeted bug fix to harden the Sophos data ingest date parsing in SEKOIA-IO/intake-formats by excluding entries that start with '%%'. This change prevents invalid date formats from entering the pipeline, reducing parsing errors and improving data integrity for downstream analytics. The work enhances ingestion reliability and supports more trustworthy dashboards and reporting.