A company with a high-availability website is looking to harden its controls at any cost. The company wants to ensure that the site is secure by finding any possible issues. Which of the following would most likely achieve this goal?

Permission restrictions are essential for controlling access to sensitive data and functionalities within a system. However, while they help mitigate risks, they do not actively seek out vulnerabilities or issues within the website. Their primary role is to enforce security policies rather than identify potential security flaws.

A vulnerability scan is a valuable tool that automates the process of identifying known vulnerabilities within a system. While effective, it may not catch all issues, especially those that are context-specific or require nuanced understanding, limiting its comprehensiveness compared to a bug bounty program.

Reconnaissance typically refers to the information-gathering phase that attackers might use to identify potential targets and vulnerabilities. While it can help in understanding the attack surface, it does not offer a solution for hardening security; rather, it merely highlights what an adversary might exploit.