Security information and event management (SIEM) solutions are essential for organizations of all sizes to monitor their environment for security threats. SIEM solutions gather and scrutinize security logs originating from diverse sources like firewalls, intrusion detection systems, and web servers. This data can subsequently be employed to detect potential threats, examine security incidents, and take action against cyberattacks.

Two methods to deploy SIEM solutions are on-prem and cloud-native. On-prem SIEM solutions are deployed and overseen using the organization’s internal hardware and software. Cloud-native SIEM solutions, on the other hand, are hosted and administered by a third-party provider in a cloud environment. 

Which is the “best SIEM?” That question isn’t easy to answer, as different enterprises have unique requirements. Let’s dig deeper to see which one is the best SIEM option for you.

Benefits of On-Prem SIEM

An on-prem SIEM solution offers several distinct advantages for organizations seeking robust cybersecurity capabilities. These include:

Control 

On-prem SIEM solutions give organizations more control over their data and security. It provides complete control over sensitive data and security infrastructure, ensuring that all information stays within the confines of the organization’s physical environment. Organizations can choose where to store their data, how to configure their SIEM solution, and who has access to the data.

Customization

On-prem SIEM solutions offer the flexibility to be tailored to the specific requirements of an organization. They provide the capability for organizations to customize and refine security policies and configurations according to their distinct needs. This high degree of customization guarantees that the SIEM system aligns with the organization’s individual threat environment and operational intricacies. Organizations have the freedom to incorporate or eliminate features, modify configurations, and create bespoke reports.

Adherence to Industry Compliance

If your company operates underneath a highly regulated industry such as government or finance, a need for an on-prem SIEM is highly beneficial as the responsibility of adhering to regulations falls squarely on your company as the owner and operator of all systems and data.

Ultimately, opting for an on-prem SIEM solution grants organizations a higher degree of autonomy, control, and flexibility in managing their cybersecurity posture, making it a compelling choice for those prioritizing data privacy, compliance, and the ability to finely tune their security infrastructure.

Benefits of Cloud-Native, SaaS SIEM

Cloud-Native and software as a service (SaaS) SIEM solutions represent a modern approach to SIEM tailored for the cloud era. It is designed to harness the benefits of cloud infrastructure, including scalability, agility, and elasticity. This enables it to effectively manage substantial amounts of data and dynamically adjust resources to accommodate shifting workloads. The benefits of opting for this solution includes:

Scalable and Flexible

Cloud-native and SaaS SIEM solutions are scalable and can be easily adapted to meet the changing needs of the organization. Organizations can add or remove users, devices, and data without having to make any changes to their hardware or software.

Easy Access

Cloud-native and SaaS SIEM solutions are generally more user-friendly compared to on-prem SIEM solutions as they can be accessed from any location with an internet connection, enabling security teams to monitor and address threats from virtually anywhere. These solutions can be accessed from any place with internet connectivity and do not necessitate specialized training or expertise.

Hands-Off Maintenance

Cloud-native systems are managed and operated by the third-party vendor. The infrastructure, including servers, storage, and networking, is managed by the service provider. Those who opt for these services don’t need to worry about the physical infrastructure or the associated maintenance tasks.

Faster Deployment and Updates

SaaS SIEM platforms leverage automation and orchestration capabilities to streamline deployment and updates. Automated processes can handle tasks such as provisioning resources, configuring security policies, and applying software updates. This reduces the reliance on manual intervention and accelerates the overall deployment timeline.

Cloud-Native SIEM solutions are especially well-suited for organizations heavily reliant on cloud-based operations, as they seamlessly integrate with the dispersed and adaptable nature of cloud environments. They provide benefits in scalability, accessibility, and deployment and management simplicity when compared with more conventional, on-prem SIEM solutions.

Disadvantages of On-Prem SIEM

However, it’s important for organizations to evaluate their specific needs, compliance requirements, and operational preferences when considering which SIEM deployment model is the best fit for them. There are disadvantages as well.

Complexity

On-prem SIEM solutions can be complex to install, configure, and manage. This can be a challenge for organizations with limited IT resources.

Cost

The cost of hardware, software, maintenance, and upgrades for on-prem SIEM solutions can be significant; especially the upfront cost. This can be a barrier for small and medium-sized organizations.

Skills

On-prem SIEM solutions require specialized skills to install, configure, and manage. This can be a challenge for organizations that do not have the in-house expertise.

Disadvantages of Cloud-Native SIEM

There are a few disadvantages of a cloud-native SIEM solution as well. Consider the following:

Less Control and Customization

Since the cloud infrastructure is not owned by your company, cloud-native SIEM typically offers less control and customization compared to on-premises solutions. This is because the infrastructure, configuration, and updates are centrally managed by the service provider, limiting the degree of customization that organizations can apply to match their specific IT environments or security policies. While this trade-off sacrifices some control, it often provides a more straightforward and hands-off experience for users, emphasizing ease of use and faster deployment.

Compliance

Cloud-native SIEM solutions may not be able to meet all of your compliance requirements. This is because cloud-based solutions are subject to the security and privacy policies of the cloud provider.

Data sovereignty

Cloud-native SIEM solutions may not be able to meet your data sovereignty requirements. This is because cloud-based solutions store data in the cloud, which may be located outside of your country or jurisdiction.

Which Is the Best SIEM Solution For You?

The best SIEM solution for your organization depends on your specific needs and requirements. If you need more control over your data and security, an on-prem SIEM solution may be a good option. If you want to reduce the burden of managing infrastructure and software upgrades and need a scalable solution, a cloud-native SIEM solution may be a better fit.

Ultimately, the best way to choose a SIEM solution is to carefully evaluate your needs and requirements and to compare the features and benefits of different solutions. We encourage you to take the time to do so. Our team is always here to talk about your security needs and how we can help. 

The post On-Prem SIEM vs. Cloud-Native SIEM: Which One Is Right for You? appeared first on LogRhythm.

*** This is a Security Bloggers Network syndicated blog from LogRhythm authored by Nicholas Tan. Read the original post at: https://logrhythm.com/blog/on-prem-siem-vs-cloud-siem/