Cyber Security
🔐 Cyber Security & Ethical Hacking – Complete Guide 🔹 What is Cyber Security? Cyber Security means protecting computers, networks, servers, and data from: Hackers Malware Viruses Data theft Cyber attacks Its goal is to keep information safe and secure. 🔹 What is Ethical Hacking? Ethical Hacking is legal hacking 🧑💻 An ethical hacker: Finds security weaknesses Fixes them before real hackers exploit them Works with permission (100% legal) 👉 Ethical hackers are also called White Hat Hackers. 🔍 Difference: Hacker vs Ethical Hacker Hacker Ethical Hacker Illegal activity Legal & authorized Steals data Protects data Causes damage Improves security 🧠 CYBER SECURITY – CORE AREAS 1️⃣ Networking Fundamentals (Very Important) IP Address DNS TCP/IP HTTP / HTTPS Firewalls Routers & switches 2️⃣ Operating Systems Linux (Kali Linux) Windows security basics File systems & permissions 3️⃣ Cyber Attacks & Threats Malware Phishing Ransomware DDoS attacks SQL Injection XSS (Cross-Site Scripting) 4️⃣ Security Concepts CIA Triad (Confidentiality, Integrity, Availability) Encryption & Decryption Hashing Authentication & Authorization 5️⃣ Cyber Security Tools Antivirus Firewalls IDS / IPS SIEM tools 🧑💻 ETHICAL HACKING – IN DETAIL 1️⃣ Ethical Hacking Phases Reconnaissance (Information gathering) Scanning Gaining access Maintaining access Covering tracks (for learning only) 2️⃣ Popular Ethical Hacking Tools Kali Linux Nmap Metasploit Wireshark Burp Suite John the Ripper 3️⃣ Web Application Security SQL Injection CSRF XSS Authentication flaws 4️⃣ Penetration Testing Web apps Networks Wireless networks Mobile apps 📜 CERTIFICATIONS (Important) CEH (Certified Ethical Hacker) CompTIA Security+ OSCP CISSP (Advanced) 💼 CAREER OPTIONS Cyber Security Roles: Cyber Security Analyst Security Engineer SOC Analyst Network Security Engineer Ethical Hacking Roles: Ethical Hacker Penetration Tester Bug Bounty Hunter 💰 Salary (India): Fresher: ₹40,000 – ₹70,000 / month Experienced: ₹1,50,000+ / month 🛣 LEARNING ROADMAP (Beginner) Step 1 Computer basics + Networking Step 2 Linux + Security fundamentals Step 3 Ethical hacking tools Step 4 Web application security Step 5 Certifications + Projects 🧪 PRACTICE PLATFORMS (Legal) TryHackMe Hack The Box OverTheWire Bug bounty programs 🎓 ELIGIBILITY 12th pass or above No age limit Strong interest in security & networking