HD-Sec is funded by the Digital Security by Design (DSbD) Programme delivered by UKRI to support the DSbD ecosystem. DSbD means incorporating the treatment of cybersecurity threats, and protection against those threats, into the easiest stages of system design, so that security is a fundamental design goal rather than an afterthought. The UK Industrial Strategy Challenge Fund (ISCF) challenge on Digital Security by Design has a mission to increase the protection of IT systems against various class of software vulnerabilities, underpinned by additional hardware protection capabilities (so-called capability hardware). Our project will address engineering challenges in establishing and formally verifying the relationship between application-level security requirements and secure software implementations running on capability hardware. Our proposal is addressing Objective 1: Capability enabled hardware proof and software verification of the EPSRC/ISCF Digital Security by Design call.