The present cybersecurity centers around the formation of threat signatures, which do a great job of distinguishing breach pattern that has just been found and codified. But in present cybersecurity atmosphere, threats, attacks are rapidly advancing, and solutions on the distribution of threat signature leave a critical gap in coverage.

Cybersecurity is becoming more complicated and growing in frequency, making it almost inconceivable for tech group to stay aware of the number and nature of threats.

SIEM approach:

The basic principles of SIEM security are collecting relevant data from multiple sources, alerting any changes in a network security pattern while taking appropriate measures.

For example, when a change is being noticed by changes in cybersecurity network pattern, a SIEM solution might log additional information, generate an alert and instruct other security controls to stop an activity’s progress.

At its core, a SIEM provides:

• Log collection ( Event-based): This may come in many forms, especially with in-house applications.

• Correlation: This forms data relationship based on architecture, rule, and alerts. This is either in historical or real-time.

• Diverse Views: Provides a clear view in the form of dashboards or “views,”

• Standardization: A two-part function. First, transcripts computer nonreadable data to readable display. Second, mapping data based on user-defined groups. Also known as “field mapping.”

• Reporting and Alerting: This may not only be used to show SIEM value to higher authorities but also provide automated verification of continuous monitoring, trends, and auditing.

• Log Management: Allows the capability for storing event and logs into a central location, For better collection of log data, information security analysts need to create organization’s data collection architecture, a map based on that notes from which locations they will be collecting logs, as well as how long event logs will be stored as “active” and “archived.”

A top of the line SIEM solution ought to have the capacity to control diverse event streams. It guarantees that time stamps and data formats are according to the standard type before they get stored in a data store.

Common Misconception about SIEM:

1. Tool impression of SIEM:

This is not entirely true, In many security programs, misbelief is that SIEM is considered a strategic goal and assumption that just a piece of software can solve all the problems. In fact, Managing organizations cybersecurity is SIEM number one priority, also includes governance and processes.

2. SIEM as a Magic Bullet

A SIEM based on company’s cybersecurity threat analysis, requires proper tuning, conditioning to work effectively. Data is collected, and the appropriate correlation rules applied.

In order to be effective in using SIEM approach, use cases need to reflect the organization’s risk profile, which is a result of a risk assessment process such as threat modeling. Define and continuously update use cases prominently.

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3. SIEM does not Impact the Organization

Though the visibility of an environment is increased by SIEM tools. However, there is a risk that organizations will get deluded when threats and vulnerabilities are discovered by SIEM in short span of time. Hence Organizations need to start by analyzing and implementing use cases and accordingly implementation for a possible data breach can be followed and executed.

Conclusion:

A very good practice of cyber security defense strategy utilizes various mediums: Firewalls, VPN, IDS, AV, AAA, User Events - LDAP/NIS/X.500/NDS, OS Logs, thousands of events will be generated in a day, in some cases, even millions. A thousand events per day monitoring is maximum for any software engineer.

So, if an organization's cybersecurity needs to effectively utilize manpower while remaining small they need SIEM approach. Monitoring and evaluating a device is critical no matter the tool used, each device can be bypassed creating a weak link to an organization’s security. With cross device correlation and monitoring, any changes in device network pattern create an alert as it is attacked raising awareness and threat indications at each point allowing defenses at play.







