Source Code Review is the line-by-line assessment of the application codebase so that any security flaws or backdoors left in the coding of the application can be identified and patched at the earliest. Insecure code could potentially result in a vulnerability at a later stage of the software development process and ultimately result in an insecure application. The goal of source code review is to improve the code's security and uncover any flaws before they may cause any harm. Source Code Review is also known as Secure Code Review or Static Code Analysis.

Automated tool based and Manual tool based are two different techniques which use to perform source code review.

Benefits of Code Review

• Ensuring consistency in design and implementation: Code review helps all experts working on the project standardize the source code and adhere to certain coding practices.It is also helpful for future developers in building new features without wasting time on code studies.
• Discovering bugs earlier: With source code review, developers get the chance to spot and fix the problem before the users ever see it. Moreover, by moving this process earlier in the development cycle, the specialists can start fixing without waiting until the end of a lifecycle, when more effort is needed to remember the reasoning, solutions, and code itself.
• Verification for the developed and required features: Each project has well-defined requirements and scope of work, and several developers working on the project can create various features accordingly. It’s vital to assure that none of them misinterpreted a requirement or crafted a useless feature. It’s exactly what code review helps to achieve while also ensuring all the critical features were created as defined in the specification and requirements.
• Enhancing security: Team members check the source code for vulnerabilities and warn developers about the threats. So, code reviews help to create high-level safety, especially when security experts are involved.
• Sharing knowledge: Code review practices encourage not only collaboration between the experts and exchanging feedback, but also sharing of ideas, skills, and knowledge of the latest technologies.

Our Approach to Code Review:

• Reconnaissance: To offer the review team an understanding of how the programme is supposed to operate, a look at the real operating application is absolutely necessary. The review team can begin going with a quick rundown of the database's structure and any libraries that are being used.
• Threat Assessment: Threat Assessment is one significant part of our Source Code Review , as it enables a comprehensive picture of the attack surface in the target environment with an idea of potential threat actors . Carrying out a threat analysis to comprehend the architecture of the application. These threats need to be prioritized among the vulnerabilities during the code review.
• Automation: Code review is carried out during automation using a variety of paid/free technologies. Automated technologies are frequently used to analyze huge code bases with millions of lines of code, speeding up the code review process.
• Manual Code Review: In order to verify access control, encryption, data protection, logging, and back-end system connections and usage, manual code review is the only method available. A manual inspection is crucial for tracking an application's attack surface and figuring out how data moves through an application from sources to sinks. It improves code readability and also aids in reducing false positives.
• Confirmation: Following the completion of the automated and manual reviews, we thoroughly verify any risks that may have been identified as well as any potential remedies for any known codebase vulnerabilities.
• Reporting: After completing all of the aforementioned stages, we compile all of our findings into a report that is easy to read. Our Secure Code Review Report includes an executive summary highlighting business risk and other security issues with suggested remediation actions based on the priority and criticality of issues.