The presentation by Rishabh Mishra outlines the threats posed by cyber crime, including identity theft, phishing, and malware, detailing how these crimes are committed and potential preventative measures. It discusses the evolution from Web 2.0 to Web 3.0, highlighting decentralized systems like blockchain and innovative technologies such as decentralized storage and privacy-focused browsers. Additionally, it emphasizes the importance of effective use of technology and security measures to protect against cyber threats.