The main role of a security analyst in an organization is to protect information systems by identifying vulnerabilities, monitoring network activity, and implementing security measures. They assess risks, analyze threats, and ensure compliance with security policies. A key responsibility is conducting security audits and responding to security incidents. Through continuous monitoring and analysis, security analysts help mitigate risks to critical assets, making them essential for maintaining the overall integrity and confidentiality of organizational data. Their efforts are crucial in defending against cyber threats and maintaining customer trust.