The major steps involved include: 1) Document Collection: The first step is to collect important project documents like codebase, whitepaper, technical documentation, etc.  2) Document Review: Here, the team members review the submitted documents to find the scope and technical specifications of the project.  3) Smart Contract Review: The blockchain security expert reviews every line of smart contract code to detect security issues.  4) Audit Testing: The smart contracts are tested manually and automatically using industry-standard audit tools.  5) Initial Report and Suggestions: After testing, the team creates an initial report based on the test result. Moreover, they provide suggestions to rectify the issues.  6) Reassessment: The audit firm interacts with the project's development team to fix all the security vulnerabilities detected in its initial report.  7) Final Audit Report: After fixing the existing issues, a detailed final audit report is provided to the clients.