This certification acknowledges the participation and successful completion of the Cloud Security Space Capture The Flag (CTF) organized during Ekoparty 2025, with the support of Interbank, OffSec, Altered Security, Orca Security, OZ Digital Consulting, Semilla Cyber, GISAC, Uqbar UN, PlainText Cybersecurity Solutions, and RedTeamRD. This edition was built around MediCloudX, a fictional company that served as the central storyline of the 2025 CTF. Participants were challenged to investigate and compromise a wide range of assets across AWS, Microsoft Azure, and Google Cloud Platform (GCP) environments, uncovering misconfigurations and vulnerabilities across multi-cloud infrastructures. The competition included 20 progressively difficult challenges, intentionally designed to guide newcomers into the world of cloud hacking. Early challenges were introductory, helping participants build confidence through simple exploitation scenarios, while later stages demanded more advanced skills and creativity to overcome complex, realistic attack surfaces. Although the CTF was cloud-themed, it featured a diverse set of topics including web applications, Android mobile applications, Active Directory environments, and binary exploitation—offering a truly comprehensive security experience that bridged offensive and defensive techniques across multiple domains. This certification recognizes the candidate’s curiosity, persistence, and technical ability to navigate and overcome the multifaceted challenges of modern cloud and hybrid infrastructures.