Building Sustainable Security Structures: Practical Application of Cyber Threat Intelligence.

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  1. Origins of Cyber Threat Intelligence Data
    Cyber Threat Intelligence (CTI) refers to the process of collecting, analyzing, and disseminating information about cyber threats and risks. But where does this data come from?
    CTI data originates from various sources:
    Open-source intelligence (OSINT): Publicly available information from websites, social media, forums, and other online platforms.
    Closed-source intelligence (CSINT): Proprietary data collected by organizations, security vendors, and government agencies.
    Human intelligence (HUMINT): Insights gathered from experts, analysts, and security professionals.
    Technical intelligence (TECHINT): Data extracted from network traffic, logs, and security tools.
    Threat intelligence sharing communities: Collaboration among organizations to share threat data.
    The combination of these sources provides a comprehensive view of the threat landscape.
  2. Data Evaluation: Beyond Passing Along Information
    Effective CTI involves more than just passing along raw data. It requires evaluation and context:
    Data enrichment: Adding relevant context to raw data (e.g., geolocation, threat actor profiles).
    Data validation: Verifying the accuracy and reliability of information.
    Threat assessment: Determining the severity and impact of identified threats.
    Prioritization: Focusing on critical threats that pose the highest risk.
    CTI analysts play a crucial role in evaluating and transforming data into actionable intelligence.
  3. Forms of Cyber Threat Intelligence and Their Users
    CTI can be categorized into three levels:
    Strategic CTI:
    High-level intelligence for decision-makers (executives, board members).
    Focuses on long-term trends, threat landscapes, and risk assessments.
    Helps shape security policies and resource allocation.
    Tactical CTI:
    Targeted at security teams, incident responders, and system administrators.
    Provides actionable insights for day-to-day operations.
    Includes indicators of compromise (IoCs), threat actor profiles, and attack techniques.
    Operational CTI:
    Detailed, technical information for security analysts and SOC teams.
    Specific IoCs, malware analysis, and network behavior.
    Supports real-time threat detection and response.
    Who can use CTI?
    Organizations of all sizes, from small businesses to large enterprises.
    Government agencies, law enforcement, and critical infrastructure providers.
    Security vendors, threat intelligence platforms, and managed security service providers (MSSPs).
    Remember that CTI is an ongoing process, adapting to the evolving threat landscape. By leveraging timely and relevant intelligence, organizations can enhance their security posture and proactively defend against cyber threats12.

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