The document discusses cyber security threats. It begins with definitions of cyber security and cyber crime. It then covers the history of security from prehistoric times to modern cryptography. Various cyber crimes are outlined like phishing and child pornography. Cyber threats include ransomware, espionage, and advanced persistent threats from hackers. Basic cyber security practices are suggested like education, using antivirus software, and avoiding public Wi-Fi. The presentation concludes with a demonstration of email spamming and a cyber security awareness video.