In WP1, an innovative Requirements Engineering methodology known as Security Capability-Oriented Requirements Engineering was designed and deployed to form the reference model of the integrated SENTINEL solution. In parallel, an experimentation protocol was defined enabling the evaluation of the SENTINEL platform. Within WP2 the final versions of the GDPR Compliance Self-Assessment module (GDPR CSA) and the Identity Management System (IdMS) were delivered. Furthermore, state-of-the-art security- and privacy-enhancing modules have been delivered to meet specific needs of end-users. Finally, continuous monitoring of various sources to meet the GDPR objectives and other data protection regulations has been finalised. In WP3 open data security platforms have been accessed and used by Observatory which was expanded with the addition of CONCORDIA MISP. In addition, the Recommendation Engine has been finalised to provide recommendations to the users in the form of Organisational and Technical Measures (OTMs), trainings and tools. Finally, the Policy Drafting module has been designed comprising 175 OTMs including 37 new GDPR measures. In WP4, the SENTINEL’s SMEs/MEs self-assessment services were implemented. A stable shared data model for the SME profile, record of processing activities (ROPA) functionality and user flows have been established. Finally, integration of the CyberRange platform and new gaming interface in the SENTINEL platform have been finalized. In WP5, User Journeys were developed to specify the interaction of the system with the SMEs/MEs users and design the User Interfaces (UIs). After successful release of the SENTINEL Minimum Viable Product (MVP) and Full-Featured Version (FFV), WP5 continued supporting the evolution of the platform to accommodate new features, bug fixes and adjustments based on the feedback received from the SENTINEL end-users. To that end, the SENTINEL final version was released with improved user experience and more approachable to the stakeholders. The SENTINEL platform was tested and validated at distinct periods of technical achievements. In this regard, the SENTINEL MVP, Full-Featured and Final Versions were tested and validated through sectorial and generic experiments as part of WP6 activities. To that end, multiple SME-centric workshop activities were organised to address the end-users’ business and technical challenges allowing them to thoroughly evaluate the impact of the SENTINEL innovations. In WP7, the project’s results have been transferred to wider scientific and technical networks via publishing papers, generating numerous promotional materials, organising events, participating in third-party events, networking with EU projects and Digital Innovation Hubs. Furthermore, the project’s Key Exploitable Results together with joint and individual exploitation strategies have been formulated. SENTINEL applied for the Horizon Booster initiative to strengthen its dissemination and exploitation strategy and maximise the project's impact. Finally, WP8 enabled smooth project execution, effective internal and external communications while WP9 analyzed the ethical implications of the SENTINEL project, to comply with legal and ethical requirements.