🔐 Introduction to Cyber Security
In today’s digital world, protecting your personal and organizational data is more important than ever. Cyber Security is the practice of defending computers, servers, mobile devices, electronic systems, networks, and data from malicious attacks.
💡 Note: Cyber security is not just for big tech companies—it affects individuals, small businesses, and governments alike.
🌐 Why Cyber Security is Important
- Protects sensitive personal information from hackers
- Prevents financial theft and fraud
- Defends against cyber threats like malware, phishing, and ransomware
- Ensures safe and secure access to systems and networks
- Maintains trust and reputation for organizations
🛡️ Common Cyber Threats
- Malware: Malicious software like viruses, worms, spyware
- Phishing: Fake emails that trick users into giving up sensitive information
- Ransomware: Blocks access to your system until a ransom is paid
- Denial-of-Service (DoS): Overloads a server to shut down access
- Man-in-the-Middle Attacks: Hackers intercept communication between two parties
🔑 Key Concepts in Cyber Security
- Confidentiality: Keeping information private
- Integrity: Ensuring information is accurate and unchanged
- Availability: Making sure information is accessible when needed
- Authentication: Verifying a user's identity
- Authorization: Controlling access to resources
🧰 Basic Tools & Techniques
- Firewalls
- Antivirus and Antimalware Software
- Encryption
- Two-Factor Authentication (2FA)
- VPNs (Virtual Private Networks)
- Security Audits
🎓 Career Paths in Cyber Security
- Security Analyst
- Ethical Hacker / Penetration Tester
- Security Engineer
- Chief Information Security Officer (CISO)
- Digital Forensics Expert
🧠 Tip: Always keep your software and systems updated to patch vulnerabilities. Use strong, unique passwords and never share them.
📚 What to Learn Next
- Network Security Basics
- Ethical Hacking Tools
- Security Certifications (like CEH, CISSP, CompTIA Security+)
- Cryptography
- Incident Response