This deliverable is the final version of the security assurance and acceleration in the E2F2C framework and it describes the work conducted in Task 4.3 within WP4, after M18. In the context of MARVEL, security assurance is achieved using two components, namely EdgeSec Virtual Private Network (EdgeSec VPN) and EdgeSec Trusted Execution Environment (EdgeSec TEE). EdgeSec VPN secures the communication channels between the interconnected MARVEL components across the three layers (i.e., Edge, Fog, Cloud). EdgeSec TEE enables confidential and secure execution of applications that process sensitive data. Acceleration is accomplished with the GPURegex component that enables high-performance stream processing through GPU-accelerated pattern-matching. In this deliverable, we present the final versions of these tools, their relation to the MARVEL project, their role in the whole MARVEL framework, how they address the WP4 objectives, and how they achieve the KPIs defined.