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Threat Actors

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May 1, 2024 Updated July 6, 2025 16 minute read

Threat actors are individuals or groups who use their knowledge and skills to exploit vulnerabilities in computer systems and networks for malicious purposes. These actors can range from hobbyists to organized crime groups, and their motivations can vary from financial gain to political activism or espionage.

Types of Threat Actors

There are various types of threat actors, each with unique goals and methods. Some common types include:

  • Hackers: Individuals who use their technical skills to gain unauthorized access to computer systems and networks. Their motivations can include curiosity, financial gain, or political activism.
  • Cybercriminals: Individuals or groups who engage in illegal activities such as identity theft, fraud, or extortion using computer systems and networks.
  • State-sponsored actors: Governments or government agencies that use their resources to conduct cyber operations for political or military purposes.
  • Insider threats: Individuals with legitimate access to an organization's systems and networks who use their knowledge to harm the organization.

Motivations of Threat Actors

The motivations of threat actors can vary widely. Some of the most common motivations include:

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Reading list

We've selected nine books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Threat Actors.
This classic book provides a practical process for identifying and addressing security threats. It focuses on the STRIDE model, which helps you identify potential threats to your system and its components.
Is written by one of the world's most famous hackers. It provides insights into the psychology of attackers and how they exploit human weaknesses to gain access to systems and information.
Practical guide to penetration testing, which critical skill for identifying and mitigating security vulnerabilities. It covers a wide range of topics, from basic techniques to advanced methodologies.
Provides a comprehensive overview of network security assessment techniques. It covers a wide range of topics, from network reconnaissance and vulnerability scanning to penetration testing and incident response.
Provides a practical guide to reverse engineering malware. It covers a wide range of topics, from reverse engineering basics to advanced techniques for analyzing complex malware.
Practical guide to Metasploit, which powerful open-source tool for penetration testing. It covers a wide range of topics, from Metasploit basics to advanced techniques for using Metasploit to exploit security vulnerabilities.
Provides a practical guide to malware analysis. It covers a wide range of topics, from malware basics to advanced techniques for analyzing complex malware.
Classic account of a real-world cyber espionage case. It provides a fascinating insight into the world of threat actors and the techniques they use to exploit security vulnerabilities.
Memoir by one of the world's most famous hackers. It provides a fascinating insight into the world of threat actors and the techniques they use to exploit security vulnerabilities.
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