In 2005, Gartner came up with the term “SIEM.” It combined Security Information Management (SIM) with Security Event Management (SEM) technologies.¹ Today, SIEM stands for Security Information and Event Management. It’s key for cybersecurity. SIEM collects, looks at, and connects log data from various places. Its goal is to find and deal with security risks.¹ Every year, over $6 trillion is lost due to security breaches. Cyber threats keep changing and growing.

SIEM collects logs and data from many sources like users, servers, and more. Then, it puts all this data in one place for easy viewing and analysis.¹ An event log keeps track of everything that happens within a system. This includes alerts for malware, strange logins, and more.

By using SIEM, you can see everything happening in your network. It helps spot issues fast and stop threats before they cause big problems.

Understanding SIEM: Security Information and Event Management

SIEM stands for Security Information and Event Management. It’s a type of security software. It brings together logs and event data from various sources. These include users, servers, and devices like firewalls. Its goal is to watch over and understand all the security events happening within a company’s systems.¹ SIEM combines SIM (Security Information Management) and SEM (Security Event Management). SIM mainly works on gathering and organizing log data. It’s focused on storing the data for compliance and later analysis. SEM, on the other hand, aims at spotting threats and tracking security events in real time. The combination of SIM and SEM within SIEM means it does things ranging from event log management to actively responding to security incidents.

SIEM collects event logs and data from various devices and applications. It then puts them all in one place for easier management and analysis. This central system allows for real-time monitoring. Event logs keep track of everything happening, including successful and failed logins, warnings, and more. SIEM helps by keeping a close eye on a company’s activities. It looks for any unusual behavior or possible threats.

SIEM Process in Detail

The process of using SIEM has four main steps. First, it collects logs and event data in real time. This includes information from device systems and applications. Second, it focuses on spotting early warning signs of threats. This includes identifying malware, possible attacks, and unauthorized access attempts. Third, it provides real-time alerts and reports. These alerts are based on specific conditions and rules. Finally, the system uses advanced analytics. It employs artificial intelligence and machine learning to predict and prevent security risks effectively.

what is siem in cyber security

The SIEM process starts with gathering event data from many sources. These include host systems, security devices, and applications across an organization. This data is then put into a central platform. This part is key as it lays the groundwork for spotting and dealing with security issues.¹

Real-Time Log Collection and Event Sourcing

SIEM software works by pinpointing and sorting through data. It looks for things like malware, security attacks, and unauthorized logins. SIEM is good at finding the right data among lots of it, and it can tell if something’s not as it seems. This quick spotting of threats lets security teams respond fast.¹

Early Threat Detection

SIEM tools provide dashboards, alerts, and reports when they spot something worrying. This means security teams can act right away. Also, they can use SIEM’s reports to improve their security over time.¹

Real-Time Alerts

Today’s SIEM software doesn’t just look at simple data. It’s now powered by AI and machine learning. This helps companies keep up with changing threats and tactics. And as tech environments change, these SIEM tools can adapt to work anywhere.¹²

Advanced Analytics

Conclusion

SIEM (Security Information and Event Management) is key for stopping online threats. It spots, investigates, and deals with security issues by checking log info from all network parts.³ It spots threats on the spot, uses smart analysis, and reacts fast. This way, security teams can beat new attack tricks and cut damage from breaches.³ As dangers get more complex, a top-notch SIEM is a must for keeping your data safe in today’s digital world.³

SIEM uses four steps to work: it grabs data, mashes it up, looks for threats, and then takes steps to fix them.⁴ SIEM software keeps an eye on your network, spots dangers, gives teams the time they need, alerts you to breaches, and organizes the data neatly.⁴ It’s made things better by finding threats faster, cutting costs, stopping future attacks, letting you know in real time, and needing fewer staff and less security spending. Plus, it helps you play by the rules.⁴

Today’s SIEM is getting even smarter with extras like UEBA for spotting dangers early with behavior checks, and SOAR to fix things automatically after a security issue.⁴ SentinelOne’s tech, like Singularity XDR API, brings super automation by mixing AI and learning with your security jobs.⁵ It’s designed to make security simpler with custom workflows and detailed reports, helping you make your data protection smarter.⁵

Source Links

1. https://www.ibm.com/topics/siem
2. https://www.fortinet.com/resources/cyberglossary/what-is-siem
3. https://intervalle-technologies.com/blog/security-information-and-event-management-siem-explained/
4. https://www.encryptionconsulting.com/education-center/what-is-siem/
5. https://www.sentinelone.com/cybersecurity-101/what-is-security-information-and-event-management-siem/