What Is SIEM and How Does It Enhance Threat Detection?

Although security information and event management (SIEM) has been around for more than a decade, the solution continues to evolve. But too many enterprises still don't know which security use cases SIEM can take on, how it can capture and leverage data -- structured and unstructured, internal and external -- or how to effectively implement a SIEM solution. Security talent remains in short supply, while point solutions have become all too common. Defenders need a SIEM solution to detect threats in the extended environment, artificial intelligence (AI) to identify connections behind suspicious activity, and automated processes to rapidly shut down attacks. Taking a step back to define the phrase, what is SIEM?