Introduction to Cybersecurity

Types of Cybersecurity

• Offensive Cybersecurity
• Defensive Cybersecurity

Offensive Cybersecurity (Red Teams)

• Involves breaking computer systems, exploiting bugs and finding loopholes in applications.
• Think like a hacker to prevent hacking attacks.

Defensive Cybersecurity (Blue Teams)

• Involves preventing cyber attacks.
• Preparing systems to identify attacks when it is happening.
• Tasks in defensive cybersecurity include
  • Cybersecurity awareness.
  • Documentation and asset management.
  • Updating and patching systems.
  • Setup preventative security systems.
  • Setup logging and monitoring systems.

Areas of Defensive Cybersecurity

• Security Operations Center (SOC)
  • Monitoring the network and systems to detect malicious activities.
• Threat Intelligence
  • Gathering information about actual or potential enemies.
• Digital Forensics and Incident response
  • Analysing the evidence of an attack and the appropriate response.
• Malware analysis
  • Analysing a malicious software or malware.
  • Different types of malware are
    • Virus - Attaches itself to a program and spreads from one computer to another infecting each of them.
    • Trojan Horse - Shows a desirable function but performs a malicious activity in the background.
    • Ransomware - Malicious program that encrypts all the user files and demands a ransom for the key.