INFORMATION SECURITY AND AUDIT
1. Overview of information security
2. Information and Network Security Policies
3. Cryptography and PKI
4. Network security applications
5. Design Principles
6. Compliance, Evaluation system and Law
7. Malicious logic and attacks
8. Vulnerability analysis and IT Audit
9. Intrusion detection and log analysis
LAB WORK -ISA
SOLVED PRACTICE QUESTIONS
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INTRUSION

Intrusion refers to unauthorized access or activities on a computer system or network. This can involve a variety of actions such as accessing sensitive data, installing malware, disrupting services, or compromising system integrity.

Types of Intrusions

  1. Unauthorized Access: Gaining access to systems or data without permission.
  2. Malware: Installing malicious software to damage or gain control of systems.
  3. Data Breaches: Accessing and exfiltrating confidential information.
  4. Denial of Service (DoS): Disrupting services to make them unavailable to legitimate users.
  5. Phishing and Social Engineering: Manipulating individuals to gain access to systems or information.

Examples of Intrusions

  • Data Breach: Unauthorized access to and theft of sensitive data, such as the Equifax breach in 2017.
  • Ransomware Attack: Malware that encrypts files and demands a ransom for decryption, like the WannaCry attack in 2017.
  • Advanced Persistent Threat (APT): A prolonged and targeted cyberattack where an intruder remains undetected for an extended period, often to steal data.
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