All about Security Information and Event Management

SIEM stands for "Security Information and Event Management". It is a set of tools and services that offer a holistic view of any organisation's information security. It works by combining two technologies:

Security information Management(SIM)

Security Event Management(SEM)

SIEM

SIEM requirement in Cyber Security

Cyber Security Incident detection: SIEM is the primary tool used in teh detection of security incidents by collecting logs from all the data sources across the network and triggers an alert on successful match of condition defined in the correlation rule. In other words, it triggers an alert in case any network anomaly is detected in the network.

Regulatory Compliance: Its is also used to comply with many security compliances like,

PCIDSS (Payment Card Industry Data Security Standard)

ISO

HIPPA

Effective Incident Management: Dashboard logging, Search Queries, reports are some of the features that

SIEM

SIEM Architecture:

1. Receiver: The main responsibility of this component is to get the logs from all the data inputs like windows OS, linux, application, routers, firewall, VPN servers etc. It is also meant for parsing the logs, normalisation and aggregation.
2. Manager: This is the heart of any

   SIEM architecture

   . It has a correlation engine where we define a correlation rule where we match a specific rule and trigger and alert based on the match. It is a centralized management to identify and monitor different cyber attacks based on the condition which we define in the rule.
3. Logger: This is a storage device to store the past events and triggers alerts. It is also used to store data for a longer period of time in case required, with an option to configure teh retention period of data based on the business needs.

Some of the

SIEM

1. HP ArcSight
2. RSA Security Analytics
3. IBM Security QRadar
4. Splunk
5. McAfee Nitro
6. LogRhythm
7. Solarwinds
8. Securonix