This deliverable is the initial version of the security assurance and acceleration in the E2F2C framework and it describes the initial version of the work conducted in Task 4.3, which is part of the WP4. Security assurance is achieved by two components. The first component is named EdgeSec Virtual Private Network (EdgeSec VPN). EdgeSec VPN secures the communications between the different components of the MARVEL platform within the different layers (i.e., Edge, Fog, Cloud). The second component, namely EdgeSec Trusted Execution Environment (EdgeSec TEE), enables confidential and secure execution of applications that process sensitive data. Acceleration is achieved through GPURegex, which is a component that offers GPU-accelerated stream processing. More specifically, GPURegex accelerates the pattern matching procedure. In this deliverable, we discuss about these tools, their relation to the MARVEL project and how they address the objectives and KPIs defined.