What is Security Operation Centre? and what they will do?

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Security Operations Center (SOC):

SOC is a centralized team of cybersecurity professionals who monitor, detect, and respond to potential security threats and incidents within an organization.



Why Do Organizations Need a SOC? 

  • Continuous Monitoring: A SOC continuously monitors an organization’s network and systems.
  • Early Threat Detection: SOCs are capable of detecting potential threats at an early stage.
  • Quick Incident Response: A SOC provides quick incident responses, ensuring that threats are contained and mitigated.
  • Compliance and Reporting: Regulatory compliance is crucial for many organizations. They create reports needed for audits and compliance assessments, offering peace of mind for management.
  • Protects Reputation: Timely detection and resolution of incidents can prevent negative public relations disasters and foster trust among customers.
  • Cost Savings 
Now you have an idea why SOC team is important for every organization. Let's explore the SOC workflow that outlines how teams operate efficiently.

SOC Workflow:

  • Monitoring: Continuous tracking of system activities via tools like SIEM.
  • Detection: Identifying suspicious activities or anomalies.
  • Triage: Classifying alerts and determining severity (handled by L1).
  • Investigations: Deeper analysis to confirm and assess incidents (handled by L2)
  • Response: Containing and mitigating the threat, restoring operations (handled by L2/L3).
  • Improvements: Post-incident reviews to enhance defenses and update playbooks (involves the entire team)



Overview of SOC Team Structure:

Overall soc is divided into multiple teams for dealing with lots of work. they are level1, level2, level 3 teams are there, and each have separate works, now get into that:

L1 (Level 1) – Alert Analyst

  • Monitors SIEM tools for alerts.

  • Performs initial triage and prioritizes alerts.

  • Escalates complex incidents to L2 for further analysis.

L2 (Level 2) – Incident Responder

  • Investigates escalated incidents to identify root causes.

  • Conducts deeper analysis of logs, IoCs, and related artifacts.

  • Responds to incidents by containing and mitigating threats.

L3 (Level 3) – Threat Hunter/Advanced Analyst

  • Engages in advanced threat hunting and forensic investigations.

  • Analyzes malware and zero-day threats.

  • Develops and fine-tunes detection rules and SOC playbooks to enhance future responses.

SOC Manager

  • Oversees SOC operations, ensuring smooth communication within the team and with other departments.

  • Ensures compliance, reporting, and key performance indicators (KPIs) are met.

Incident Response Team (IRT)

  • Collaborates with the SOC during critical incidents to contain and recover from breaches.

  • Provides recommendations for long-term remediation and prevention strategies.




In my upcoming blog, I'll take you through a SOC analyst's daily journey—from the first alert to the final report, covering every crucial step along the way.


-MEHABOOB



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