Based on the given sentence, the propaganda technique being used is "glittering generalities." This technique involves using vague and positive language to evoke emotions and create a favorable impression without providing any concrete details or evidence. In this sentence, the promise of becoming a millionaire overnight is enticing and plays on people's desires for wealth and success without offering any specific details or explaining how this can be achieved. The use of phrases like "buy, sell, and trade on the Internet" adds a sense of excitement and suggests that anyone can achieve this wealth through easy online actions. However, the technique of glittering generalities fails to provide any legitimate substance behind these claims.
