
Nico Bertoldo developed cross-platform data collection and content management features for the wazuh/wazuh and wazuh/wazuh-agent repositories, focusing on system inventory, service discovery, and CTI asset workflows. He unified Linux, macOS, and Windows data providers using C++ and CMake, implementing robust abstractions for user, group, and service information. His work included JSON-based data serialization, database schema optimization, and integration of D-Bus and Windows API for system service queries. By expanding unit tests, refactoring code for maintainability, and improving build reliability, Nico delivered scalable, production-ready modules that enhanced data accuracy, reduced deployment risk, and supported ongoing cross-platform development.

In Oct 2025, delivered major CTI workflow enhancements for wazuh/wazuh, consolidating CTI content processing inside ContentManager, enabling incremental updates via offsets, and establishing persistent CTI storage. Implemented a safe shutdown path for ContentManager to gracefully cleanup resources and close CTI storage DB. Updated build/test infra to support CTI runtime and improved reliability through targeted fixes and configuration normalization.
In Oct 2025, delivered major CTI workflow enhancements for wazuh/wazuh, consolidating CTI content processing inside ContentManager, enabling incremental updates via offsets, and establishing persistent CTI storage. Implemented a safe shutdown path for ContentManager to gracefully cleanup resources and close CTI storage DB. Updated build/test infra to support CTI runtime and improved reliability through targeted fixes and configuration normalization.
September 2025 – wazuh/wazuh: Delivered CTI and Content Management enhancements, Syscollector improvements, Chrome extension data defaults, Syscollector documentation, and macOS CI stability. These changes improve CTI asset management, data quality and consistency, reduce false delta events, enhance data completeness, and strengthen CI reliability, enabling faster issue resolution and safer product releases.
September 2025 – wazuh/wazuh: Delivered CTI and Content Management enhancements, Syscollector improvements, Chrome extension data defaults, Syscollector documentation, and macOS CI stability. These changes improve CTI asset management, data quality and consistency, reduce false delta events, enhance data completeness, and strengthen CI reliability, enabling faster issue resolution and safer product releases.
August 2025 (Month: 2025-08) - Wazuh/Wazuh delivered cross‑platform system and service discovery enhancements, strengthened data integrity, and expanded test coverage to improve monitoring reliability and data quality across Linux, macOS, and Windows. The emphasis was on shipping production-ready features with robust tests and clean data models, enabling more accurate endpoint visibility and faster risk detection.
August 2025 (Month: 2025-08) - Wazuh/Wazuh delivered cross‑platform system and service discovery enhancements, strengthened data integrity, and expanded test coverage to improve monitoring reliability and data quality across Linux, macOS, and Windows. The emphasis was on shipping production-ready features with robust tests and clean data models, enabling more accurate endpoint visibility and faster risk detection.
July 2025 performance summary for wazuh/wazuh: Delivered cross‑platform data collection enhancements and critical bug fixes that expand coverage, improve data accuracy, and strengthen build reliability. Key features delivered include a Windows services collector (collects service status, executable path, and user; with Windows wrappers and unit tests), a Linux systemd_units collector (D‑Bus integration for querying and formatting systemd unit details in JSON, with tests; migrated from libsystemd/sd-bus to libdbus-1), and cross‑platform extended_sources enablement with updated library linking and PATH_MAX support in filesystemHelper.h. Major bugs fixed include unifying the Password Change Timestamp by removing the Linux‑specific field and consolidating with user_password_last_change, and ensuring host_ip preserves empty values across Linux, macOS, and Windows to maintain data accuracy. The work is complemented by strengthened tests and broader build support across Windows, Linux, and Darwin, improving reliability, maintainability, and business value.”
July 2025 performance summary for wazuh/wazuh: Delivered cross‑platform data collection enhancements and critical bug fixes that expand coverage, improve data accuracy, and strengthen build reliability. Key features delivered include a Windows services collector (collects service status, executable path, and user; with Windows wrappers and unit tests), a Linux systemd_units collector (D‑Bus integration for querying and formatting systemd unit details in JSON, with tests; migrated from libsystemd/sd-bus to libdbus-1), and cross‑platform extended_sources enablement with updated library linking and PATH_MAX support in filesystemHelper.h. Major bugs fixed include unifying the Password Change Timestamp by removing the Linux‑specific field and consolidating with user_password_last_change, and ensuring host_ip preserves empty values across Linux, macOS, and Windows to maintain data accuracy. The work is complemented by strengthened tests and broader build support across Windows, Linux, and Darwin, improving reliability, maintainability, and business value.”
June 2025 monthly summary for wazuh/wazuh: Delivered cross‑platform group/identity collection enhancements and expanded test coverage across Linux, Windows, and Darwin. Key features include Linux Group/UID Getters, Windows Groups Collector and Getters with Windows unit tests, and Darwin Groups Collector with unit tests. Built Linux unit tests infrastructure and Syscollector unit tests, test tool enhancements with groups options, and updated configuration templates; memory management transitioned from manual new/delete to std::vector. Replaced <filesystem> with fully compatible libraries to improve cross‑build compatibility; initialized login fields with default values. Data model improvements include changing the groups table primary key from group_id to group_name. Quality and stability improvements include fixes to delta reporting, updated libsysinfo references, and resolving Coverity scan issues.
June 2025 monthly summary for wazuh/wazuh: Delivered cross‑platform group/identity collection enhancements and expanded test coverage across Linux, Windows, and Darwin. Key features include Linux Group/UID Getters, Windows Groups Collector and Getters with Windows unit tests, and Darwin Groups Collector with unit tests. Built Linux unit tests infrastructure and Syscollector unit tests, test tool enhancements with groups options, and updated configuration templates; memory management transitioned from manual new/delete to std::vector. Replaced <filesystem> with fully compatible libraries to improve cross‑build compatibility; initialized login fields with default values. Data model improvements include changing the groups table primary key from group_id to group_name. Quality and stability improvements include fixes to delta reporting, updated libsysinfo references, and resolving Coverity scan issues.
May 2025 monthly summary for wazuh/wazuh focusing on business value and technical delivery: Key features delivered: - Cross-platform User and Group Information Collection Framework: unified interface with Linux, macOS, and Windows collectors, including an OpenDirectory wrapper and platform-specific implementations (data_provider integration, tests). Representative commits include df6c084..., dfbb0b0..., f67790f..., 0624c279..., ae504a84..., 834692b9..., f73f55f5..., cca30492..., 3a85984f..., b970ce039..., 31faada5..., d597bc62... Major bugs fixed: - Defects detected by Coverity addressed in Robust Package Data Retrieval - JSON values cleaned by recursive whitespace trimming in syscollector - Code style and maintainability fixes in data_provider and wrappers Overall impact and accomplishments: - Significantly improved cross-platform data collection reliability and consistency for user/group and package data across Linux, macOS, and Windows - Cleaner, more deterministic JSON outputs and better data integrity - Increased test coverage with Windows and Darwin collector unit tests; clarified documentation and naming conventions for developers - Refined code structure and wrappers to improve readability and maintainability, enabling faster onboarding for platform-specific enhancements Technologies/skills demonstrated: - Cross-platform design and implementation (Linux/macOS/Windows), platform wrappers (OpenDirectory), and data_provider integration - Unit testing and test coverage expansion (Windows and Darwin collectors) - Code quality improvements, refactoring, and adherence to naming conventions - Static analysis awareness (Coverity) and robust data parsing/validation
May 2025 monthly summary for wazuh/wazuh focusing on business value and technical delivery: Key features delivered: - Cross-platform User and Group Information Collection Framework: unified interface with Linux, macOS, and Windows collectors, including an OpenDirectory wrapper and platform-specific implementations (data_provider integration, tests). Representative commits include df6c084..., dfbb0b0..., f67790f..., 0624c279..., ae504a84..., 834692b9..., f73f55f5..., cca30492..., 3a85984f..., b970ce039..., 31faada5..., d597bc62... Major bugs fixed: - Defects detected by Coverity addressed in Robust Package Data Retrieval - JSON values cleaned by recursive whitespace trimming in syscollector - Code style and maintainability fixes in data_provider and wrappers Overall impact and accomplishments: - Significantly improved cross-platform data collection reliability and consistency for user/group and package data across Linux, macOS, and Windows - Cleaner, more deterministic JSON outputs and better data integrity - Increased test coverage with Windows and Darwin collector unit tests; clarified documentation and naming conventions for developers - Refined code structure and wrappers to improve readability and maintainability, enabling faster onboarding for platform-specific enhancements Technologies/skills demonstrated: - Cross-platform design and implementation (Linux/macOS/Windows), platform wrappers (OpenDirectory), and data_provider integration - Unit testing and test coverage expansion (Windows and Darwin collectors) - Code quality improvements, refactoring, and adherence to naming conventions - Static analysis awareness (Coverity) and robust data parsing/validation
April 2025 monthly summary for wazuh/wazuh focused on strengthening software inventory accuracy, cross-d distro data retrieval, and build reliability. Delivered an enhanced Python/RPM package data retrieval path via Berkeley DB across package managers, with full path resolution, updated parsing/tag handling, and expanded unit tests for Python package data in RPM/DPKG contexts. Resolved key build issues and expanded test coverage to reduce risk in production deployments.
April 2025 monthly summary for wazuh/wazuh focused on strengthening software inventory accuracy, cross-d distro data retrieval, and build reliability. Delivered an enhanced Python/RPM package data retrieval path via Berkeley DB across package managers, with full path resolution, updated parsing/tag handling, and expanded unit tests for Python package data in RPM/DPKG contexts. Resolved key build issues and expanded test coverage to reduce risk in production deployments.
March 2025 monthly summary: Delivered cross-distribution improvements to Python package data collection in wazuh/wazuh, centralized the PyPI integration, and strengthened test coverage and reliability. Also standardized Windows agent service naming for wazuh-agent in wazuh-agent, docs, and automation.
March 2025 monthly summary: Delivered cross-distribution improvements to Python package data collection in wazuh/wazuh, centralized the PyPI integration, and strengthened test coverage and reliability. Also standardized Windows agent service naming for wazuh-agent in wazuh-agent, docs, and automation.
February 2025: Delivered stability and data integrity improvements across wazuh/wazuh and wazuh/wazuh-agent. Implemented critical fixes to package size parsing, enhanced log collection robustness, and expanded unit tests, alongside a database schema adjustment to accommodate larger package sizes. These changes improve reliability, prevent data loss, and support scalable package management.
February 2025: Delivered stability and data integrity improvements across wazuh/wazuh and wazuh/wazuh-agent. Implemented critical fixes to package size parsing, enhanced log collection robustness, and expanded unit tests, alongside a database schema adjustment to accommodate larger package sizes. These changes improve reliability, prevent data loss, and support scalable package management.
January 2025 – wazuh-agent: Key features delivered include inventory schema cleanup, cross-platform data collection enhancements, historical change tracking for inventory items, first-scan metadata management, and inventory documentation. Major bugs fixed address Windows package scan issues, delta reporting accuracy, and null-value handling in dbsync. Overall impact: improved storage efficiency, data consistency, reporting reliability, and maintainability. Technologies demonstrated: data modeling, cross-platform data collection, database handling, event processing, code refactoring, and documentation.
January 2025 – wazuh-agent: Key features delivered include inventory schema cleanup, cross-platform data collection enhancements, historical change tracking for inventory items, first-scan metadata management, and inventory documentation. Major bugs fixed address Windows package scan issues, delta reporting accuracy, and null-value handling in dbsync. Overall impact: improved storage efficiency, data consistency, reporting reliability, and maintainability. Technologies demonstrated: data modeling, cross-platform data collection, database handling, event processing, code refactoring, and documentation.
December 2024 performance-focused monthly summary for wazuh-agent: Delivered cross-platform reliability and maintainability enhancements for host data collection. Key outcomes include PAL testing and Windows process handling refactor, standardized missing value semantics across data provider and Linux structures, migration to JSON-based data transfer interfaces across Linux and Windows, and targeted bug fixes that reduce configuration and inventory hashing issues. These efforts improve stability, reduce deployment risks, and establish a foundation for scalable, cross-platform data pipelines.
December 2024 performance-focused monthly summary for wazuh-agent: Delivered cross-platform reliability and maintainability enhancements for host data collection. Key outcomes include PAL testing and Windows process handling refactor, standardized missing value semantics across data provider and Linux structures, migration to JSON-based data transfer interfaces across Linux and Windows, and targeted bug fixes that reduce configuration and inventory hashing issues. These efforts improve stability, reduce deployment risks, and establish a foundation for scalable, cross-platform data pipelines.
October 2024: Delivered Windows-focused build/test infra improvements for wazuh-agent, enabling module manager unit tests on Windows and simplifying cross-platform builds. Also cleaned up export macros and refined Windows-specific compile options with improved MSVC warnings handling. These changes increase CI reliability, reduce Windows-related build friction, and lay groundwork for broader cross-platform testing and faster contributor onboarding.
October 2024: Delivered Windows-focused build/test infra improvements for wazuh-agent, enabling module manager unit tests on Windows and simplifying cross-platform builds. Also cleaned up export macros and refined Windows-specific compile options with improved MSVC warnings handling. These changes increase CI reliability, reduce Windows-related build friction, and lay groundwork for broader cross-platform testing and faster contributor onboarding.
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