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SIEM Alerts

Learning Objectives

• Understand what a SIEM Alert is

• Understand the importance of SIEM Alerts for Security

• Understand some of the use cases for SIEM alerts

Attackers continually increase the cyberattack surface by exploiting vulnerability gaps in IT, applications, and hardware systems. With cyberattacks making the news every other day, security operations teams have developed technologies to prevent, identify, and defeat them. One such technology is Security Information and Event Management (SIEM) software, which identifies and responds to security incidents in real-time to minimize damage. This article will explain what SIEM alerts are, why they're essential, and how they work.

What Is a SIEM Alert? 

Security Information and Event Management (SIEM) is a combination of Security Information Management (SIM) and Security Event Management (SEM). They provide real-time monitoring, log management, and security event data analysis by design. SIEM alert tools are critical for detecting threats, assessing security incidents, and meeting compliance and auditing needs in your organization.

Simply put, SIEM alerts provide real-time security solutions for modern Security Operations Centers (SOCs) by helping them identify potential threats and vulnerabilities before they affect daily company operations. They employ artificial intelligence and automation to spot anomalies in real-time, whereas it would take many hours to detect them manually.

SIEM tools consolidate security information from network devices, servers, domain controllers, and other sources. They then store, standardize, aggregate, and analyze that data to spot trends, detect dangers, and enable enterprises to explore alarms. Continue reading to learn more about SIEMs and how people use them.

Why SIEM Alerts Are Important for Security

SIEM alerts help streamline Security Operations Centers (SOCs) by enabling them to function more efficiently. They do this by guaranteeing:    

Improved Security Data

The multiple data streams that feed into a SIEM have different schemas and fields. The SIEM can reformat the data to be consistent, which helps simplify incident analysis and response processes. This consolidated data provides a clearer picture of the enterprise's whole security situation. The data is then normalized to improve other analytics and report security data. 

Better Network Visibility

Given the complexity and diversity of today's networks (the hardware, software, services, and supporting solutions that make up a companies IT infrastructure), security teams must maintain visibility into databases, servers, devices, and third party applications and services. Through log management and aggregation, SIEMs provide network administrators with an overview of the network, servers/services, security solutions, etc. SIEMs reduce the danger that hackers will be able to exploit complex networks by gathering security event data from all points across the network, then storing the data in a central location and analyzing it to uncover any network vulnerabilities.

Improved Compliance

To help enterprises streamline the compliance process, SIEMs use predefined compliance reporting templates. They conduct real-time audits and offer on-demand compliance reporting.

More Accurate Threat Detection and Security Alerting

By monitoring log entries for evidence of malicious activities, SIEMs recognize events that might otherwise go unnoticed. They use event data gathered from all sources across the network to reconstruct attack timelines, which can help mitigate the severity of an attack. SIEM software also makes recommendations for security controls, such as telling a firewall to block malicious content.

Faster, More Efficient SecOps

SIEM software helps SecOps teams detect compromises quickly, allowing for speedier containment and eradication. An SOC Team can prevent and address cybersecurity events across a complete network much faster than in-house IT staff by centralizing security-related information. Without a SIEM, security analysts would have to manually evaluate several security device logs and data sources (such as threat intel feeds), resulting in a significant amount of data to process (which is a significant issue) and slowing down the incident response process dramatically. Instead, you can set up your SIEM solution to respond to potential security issues in real-time and reduce the negative impact on an organization. 

SIEM Use Cases

SIEM Use in Risk and Compliance

Companies utilize SIEM tools to meet compliance requirements by generating reports covering all documented security events in these sources. Organizations that do not use a SIEM must manually retrieve log data and create reports themselves.

IoT Security

Most IoT solution providers offer APIs and external data sources that are easy to incorporate into your SIEM solution. As a result, SIEM software is an essential aspect of your company's cybersecurity because it helps mitigate IoT threats like DoS attacks and identify at-risk or hacked devices in your environment.

Threat Intelligence and Prevention

Organizations use SIEM software to monitor for security risks within their networks continuously. Networks are monitored in detail to prevent irregularities that could pose a significant security risk or render the organization vulnerable.

Other use cases for SIEM alerts include web security, identity, access management, cloud security, API monitoring, mobile security, and specialized threat analysis and prediction. In all cases, SIEM alerts are for network-focused analysis and event data for log and threat management.

Learning More    

As we've explained, utilizing SIEM software is one of the best ways to prevent security issues. It can identify threats in real-time and help your organization meet regulatory requirements. Log data is at the heart of a SIEM's network traffic analysis and real-time monitoring capabilities. Mezmo provides a SIEM solution that enables your organization to manage logs, monitor network resources, and perform data aggregation effectively and efficiently.

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