In December 2024, VeChain engaged NCC Group’s Cryptography Services team to conduct a cryptography and security review of its JavaScript SDK. The SDK allows developers to interact with the VeChain blockchain, and includes essential components such as cryptography- and network-related functions. The review was delivered remotely by 4 consultants with a total effort of 15 person-days, and was followed by a gap and retesting phase of 5 person-days.