The capabilities of large AI models have entered an impressive stage, but the existence of privacy issues is seriously restricting their practical application potential. Users' attitudes towards these tools are also subtly changing—from initial entertainment attempts (such as asking it to write a song in the style of a celebrity) to now treating it as an advisor for daily decisions. However, every data flow behind each interaction amplifies the risk. This transition from "fun toy" to "trusted tool" is increasingly clashing with the realities of privacy protection.