## 6 Conclusions and Future Work  
In the modern age of information, both accessibility and cybersecurity are crucial for successfully embracing digital transformation through enhanced user-centered digital solutions. Cybersecurity not only provides secure access to user data but is also vital for business continuity, while accessibility ensures inclusion and information access to a wide audience. Protecting the most vulnerable individuals is essential for a functional modern society, preventing social isolation and a diminished quality of life for people with disabilities, as well as safeguarding all users from various cyber threats. Despite the increasing need for digital inclusion and cybersecurity, there exists a gap between security-oriented development models and accessibility-oriented ones. The proposed Holistic Security and Accessibility Layered Architecture (HSALA) aims to improve existing solutions and bridge this gap by embracing the best practices of both fields. By establishing accessible and cyber-safe user interfaces, HSALA ensures resilient, robust, and inclusive web-based applications and websites, thereby promoting digital inclusion. Integrating accessible technologies and techniques into secure, cyber-resilient web interfaces requires a holistic perspective. This approach optimizes both accessibility and security throughout the planning, implementation, and maintenance stages. The model integrates open-source technologies with cybersecurity and accessibility design principles, offering advantages such as transparency, cost-effectiveness, and reusability. Leveraging these benefits allows developers to design web pages that are easy to use and safe, yet strong and flexible enough to meet future challenges. Prioritizing accessibility and security enables the emergence of a more secure and equitable digital ecosystem that benefits all users, regardless of age, ability, or the nature of their interaction with the web. However, several limitations of the current work must be acknowledged. Although potential performance issues have been discussed theoretically, actual metrics--such as response times, resource utilization, and scalability--have not been measured. Implementing HSALA may present practical challenges. The increased complexity of a multi-layered architecture could lead to higher development and maintenance costs. Developers may require additional training to effectively implement and manage the integrated security and accessibility measures across all layers. Although the model emphasizes user-centered design and the involvement of users with disabilities, actual user testing has not beenconducted. This limitation restricts our ability to validate the model's inclusivity and usability from the perspective of end-users. To address these limitations and enhance the practical relevance of HSALA, several avenues for future work are proposed. Foremost among these is the empirical validation of the model through real-world implementation. Collaborating with industry partners and organizations to apply HSALA in existing or new web applications will provide opportunities to test the model in diverse environments. Such collaborations would facilitate the collection of empirical data on effectiveness, security, accessibility, and performance. This would provide concrete evidence of the model's applicability. Performance testing and optimization constitute another critical area for future work. Comprehensive performance assessments are necessary to evaluate the influence of additional layers on response times, scalability, and resource usage. Based on these findings, optimization techniques can be explored to mitigate any negative effects. Strategies such as leveraging microservices to decouple layers, implementing asynchronous processing, and utilizing edge computing or content delivery networks (CDNs) to reduce latency could enhance performance without compromising the model's integrity.