What is Security Information and Event Management?

Security analysts need to address the most critical threats facing their organization. Since 2005 when analyst firm Gartner coined the term, Security Information and Event Management (SIEM) has grown in importance for organizations looking to improve their security posture.

Today’s SIEM has evolved to incorporate advanced analytics such as user behavior analytics (UEBA), network flow insights, artificial intelligence (AI) and incident forensics. With a single dashboard, security analysts can gain insights from this data, drawn from a large range of security sources, to prioritize mitigation efforts based on risk profiles and increase efficiency.

Explore intelligent security analytics for insight into your most critical threats

What does a SIEM do?

a woman holding a cellphone and a tablet

Ingests vast amounts of data in near real-time from on-premises and cloud-based resources to gain centralized visibility

a city with several buildings

Adds business context to collected data and automates prioritization of threats based on the potential business impact

a woman running

Applies built-in advanced analytics and correlation rules across network, endpoint, application and user activity data

a distribution center

Supports an open ecosystem through validated integrations, APIs and an SDK to help you absorb data faster and  gain deeper insights

Why use a SIEM?

centralized visibility pictogram

Gain centralized visibility into security data

Detect and prioritize pictogram

Detect and prioritize threats in real-time

Investigate pictogram

Investigate threats quickly and accurately

How customers are using a SIEM

Insider threats

SIEM can help discover insider threat indicators through user behavior analytics and machine learning algorithms.

Phishing attacks

The correlation rules in a SIEM can identify all possible signs of an advanced persistent threat (APT) and detect phishing attacks.

Compliance reporting

SIEM can help your organization comply with standards such as GDPR, PCI, SOX, HIPAA and more.

Data exfiltration

SIEM can use behavioral analysis to correlate seemingly unrelated events, such as insertion of USBs, use of personal email services, unauthorized cloud storage or excessive printing.

OT and IOT security

Correlate data from IT and OT solutions to get a unified view and identify abnormal activity and threats.

Threat hunting

SIEM empowers you to proactively search for malware or attackers that are lurking in your network — and may have been there for some time.

The Weather Company used a SIEM solution to deliver a secure experience for their end users

Flexible deployment options for today’s evolving enterprise


Deploy IBM QRadar® (software or hardware) in-house and gain full control over your data as it stays on-site.

Software as a service

Delivered as a hosted Software as a Service (SaaS) solution, IBM QRadar on Cloud reduces SIEM deployment, maintenance and operational overhead.

Cloud or multi-cloud

Virtually deploy QRadar on the IBM Cloud and/or any third-party cloud (such as AWS,  Azure or Google).


Provision QRadar on premises and in cloud, to match your organization’s budget and security policies.

SIEM resources

Gartner Magic Quadrant for SIEM

Five myths about SIEM

What is security intelligence?