1) The document discusses various types of cyber crimes and cyber attacks such as phishing, hacking, intellectual property crimes, spreading viruses, carding, vishing, and cyber stalking.
2) It analyzes 14 research papers on topics related to cyber security threats during the COVID-19 pandemic, predicting and preventing cyber attacks using data analysis, a proposed study on cyber attack monitoring systems, and classification of cyber crimes.
3) The papers studied used techniques like neural networks, machine learning algorithms, intrusion detection systems, and more to analyze cyber attack data, understand trends, and reduce future attacks. Accuracy levels of the techniques ranged from 68% to 89%.