In the world of global retail, where every second of downtime can mean thousands of euros in lost sales and where customer trust is built through consistent and secure experiences, Carrefour France faced a challenge that defines the modern digital era: how to coordinate security incident response across a massively distributed infrastructure operating 24/7 across 30 different countries. With more than 150,000 machines distributed globally, including critical point-of-sale (POS) systems and e-commerce platforms that process millions of transactions daily, the company found itself in a situation where an uncoordinated response to security incidents could not only compromise sensitive customer data but also disrupt critical business operations on a global scale. The complexity of the challenge was amplified by the 24/7 nature of retail operations. While some regions were asleep, others were at peak business activity. A security incident that started in one region could quickly spread to others, creating a domino effect that could impact global operations. The lack of centralized coordination meant that different regional teams could be responding to the same incident in inconsistent ways, potentially exacerbating the problem rather than resolving it. Even more concerning was the lack of real-time executive visibility into the state of cybersecurity across the organization. Senior executives often learned about significant incidents hours after they occurred, limiting their ability to make informed strategic decisions and communicate effectively with external stakeholders. The transformation began with a revolutionary vision: to create a center of excellence that would serve as the brains of a truly global incident response operation. This would not be just another security operations center, but a specialized organization designed specifically for the unique needs of global retail, where speed of response and seamless coordination are critical to success. The center of excellence implemented by Carrefour represents a fundamental evolution in the approach to incident response. Operating 24/7 with specialized teams strategically distributed to cover all time zones, the center acts as a digital conductor orchestrating coordinated incident responses across the global infrastructure. Using standardized processes based on the NIST framework, the center ensures that every incident is treated with the same excellence and rigor, regardless of where it occurs. What sets this implementation apart is its deep integration with global monitoring systems and its ability to provide real-time executive dashboards. Senior executives now have instant visibility into the state of cybersecurity across the organization, enabling informed decision-making and proactive communication with stakeholders. The implemented capabilities go far beyond passive monitoring. The center incorporates proactive threat hunting, where security experts actively look for signs of malicious activity before they become full-blown incidents. Automated response ensures containment actions are executed in seconds, not minutes, while digital forensics enables in-depth investigations that not only resolve current incidents but also strengthen defenses against future threats. The results achieved by Carrefour are truly extraordinary and demonstrate the transformative power of a coordinated approach to incident response. The 82% reduction in the mean response time to critical incidents represents a fundamental transformation in the company's ability to protect its operations and customers. Even more impressive is that 95% of the incidents are now automatically detected and classified by the system, allowing human experts to focus on sophisticated threats that require specialized analysis.