The word "SIEM" refers to a broad range of security software applications, including Log Management Systems, Security Information Management, and Security Event Correlation. These characteristics are typically combined to provide a 360-degree view. Although a SIEM system cannot guarantee security, it is one of the most critical signs that a company has a well-defined cybersecurity policy. An attack on a computer usually does not show any obvious signs at the surface.
Therefore, the log files can be used more effectively to find threats. SIEMs are at the center of network transparency thanks to their superior log handling features. Most security programmes work on a micro-scale, focusing on minor dangers while ignoring the overall scope of cyber threats. For example, an Intrusion Detection System (IDS) often can only monitor packets and IP addresses. The only things that appear in your service logs are user sessions and configuration updates. To offer a thorough overview of every security issue through real-time monitoring and the analysis of event logs, SIEM integrates these systems and others of a similar nature.
SIEM functionalities:
SIEM gathers information from a user's internal tool network to identify potential problems and assaults. Using SIEM, servers, firewalls, networks, devices, and data are gathered from agents and distributed. The management console receives all this data, which may then be examined to address new threats. Advanced SIEM systems frequently employ security orchestration, entity behavior analytics, and automated responses. This guarantees that SIEM technology can monitor and mitigate weaknesses between cybersecurity products.
A data analyst who can offer feedback on the entire process views the necessary data once it has arrived at the management console. This is crucial because feedback enables the SIEM system to learn more about the environment and increase its familiarity. The SIEM software system then contacts the device's other security systems to stop the undesirable activity after identifying a threat. SIEM systems are a well-liked enterprise-scale solution due to their collaborative nature. However, as widespread cyber dangers have grown, more small- and medium-sized firms have begun to weigh the advantages of a SIEM system. Due to the high expenditures associated with adopting SIEM, this transformation has only recently occurred. In addition to shelling out a sizable sum for the system, you must designate one or two employees to manage it. Smaller firms have therefore been less enthusiastic about using SIEM. However, as SMEs can now outsource to managed service providers, this has started to alter.
The importance of SIEM:
SIEM is becoming a crucial part of security in contemporary enterprises. The primary cause is that each user and tracker creates a digital footprint in a network's log data. SIEM systems can use these log files to understand previous attacks and occurrences. A SIEM system not only alerts you to the fact that an attack has occurred but also enables you to determine how and why it occurred. SIEM has become even more important as businesses upgrade to more complex IT systems. Contrary to popular belief, firewalls and antivirus software cannot completely secure a network. Zero-day attacks can still surpass a system's protections even with these security precautions. SIEM solves this issue by identifying attack activity and comparing it to previous network activity. A SIEM system can differentiate between a malicious attack and valid use. Doing so prevents harm to systems and virtual property, and incident protection for a system is increased.
