Cyber Security Basics: Stay Safe in the Digital World
- 1. CYBER SECURITY Presented By Ms Subhasheni A Assistant Professor Department of Computer Science Sri Ramakrishna College of Arts & Science Coimbatore SUBTITLE: BASIC CONCEPTS AND PROTECTION STRATEGIES
- 2. INTRODUCTION TO CYBER SECURITY Definition of cyber security Importance in the digital age Goals: Confidentiality, Integrity, Availability (CIA)
- 3. TYPES OF CYBER THREATS Malware: viruses, worms, ransomware Phishing: deceptive emails or messages Denial of Service (DoS): overwhelms systems Man-in-the-middle (MitM): intercepts communications
- 4. COMMON CYBER ATTACKS SQL Injection: exploits database queries Cross-site Scripting (XSS): injects malicious scripts Brute-force attacks: tries all password combinations Zero-day exploits: uses unpatched vulnerabilities
- 5. CYBER SECURITY PRINCIPLES Principle of Least Privilege Defense in Depth Risk Assessment and Management Regular Updates and Patching
- 6. NETWORK SECURITY Firewalls and IDS/IPS (Intrusion Detection/Prevention Systems) Secure network configuration Network segmentation Use of VPNs and secure protocols
- 7. ENDPOINT SECURITY Antivirus and anti-malware protection Device encryption (e.g., BitLocker) Secure configuration and policy enforcement
- 8. USER AWARENESS AND TRAINING Educate users on risks and threats Recognize phishing and social engineering Use strong passwords and password managers Avoid suspicious links and downloads
- 9. DATA PROTECTION Encryption: for data at rest and in transit Regular data backups and secure storage Safe data disposal (e.g., shredding, wiping)
- 10. SECURITY POLICIES AND COMPLIANCE Establish security policies and procedures Comply with laws like GDPR, HIPAA, ISO 27001 Perform audits and maintain documentation
- 11. INCIDENT RESPONSE teps: Detect Contain Eradicate → → → Recover Document and analyze incidents Learn from past events (Post-Incident Review)
- 12. CYBER SECURITY BEST PRACTICES Use strong, unique passwords Enable multi-factor authentication Update software regularly Backup important data routinely
- 13. CONCLUSION Cyber security is essential in today’s world Requires layered defense and awareness Everyone plays a role in protecting information