A security breach has compromised the European Commission's Amazon cloud infrastructure, prompting an investigation into the incident. The breach, which involved unauthorized access to the Commission's cloud resources, has raised concerns about the evolving nature of cyber threats and the potential vulnerabilities of cloud-based systems. Specifically, the incident highlights the risks associated with relying on third-party cloud services, such as Amazon Web Services (AWS), and the need for robust security measures to prevent and respond to breaches. The European Commission's investigation will likely focus on determining the cause and scope of the breach, as well as identifying measures to prevent similar incidents in the future1. This breach matters to cybersecurity practitioners because it signals a potential shift in attack methods, which could have downstream regulatory and supply-chain effects, ultimately impacting the security of cloud-based infrastructure.