Deepak Kumar is taking an Advanced Python course taught by Ma'am Nusrat. As part of a class project, he is working on detecting online payment fraud using machine learning. He loads a dataset containing historical fraudulent transaction information to train a model to classify payments as fraudulent or non-fraudulent. After preprocessing the data, Deepak splits it into training and test sets. He trains a model and checks the accuracy on the test set, achieving close to 100% accuracy. He concludes machine learning can effectively detect online payment fraud.