Large language models (LLMs) have revolutionized various sectors by powering applications like chatbots and data analytics, but they also present significant security challenges that organizations must address to ensure reliable AI deployment. The text discusses the critical risks associated with LLMs, such as prompt injection, data poisoning, selective information disclosure, and model theft, which can lead to reputational damage, compliance breaches, and operational disruptions. Best practices for securing LLMs include data encryption, anonymization, robust access controls, secure API design, and output validation to mitigate potential vulnerabilities. Real-world examples highlight the consequences of inadequate security measures, such as data leaks and unauthorized access, emphasizing the necessity for proactive protection strategies like red teaming and continuous monitoring. The text concludes by underscoring the importance of implementing comprehensive security workflows to safeguard LLM deployments and build trust in AI-powered solutions.