What you want to say is, "reveal the data of those users who were discriminated against." It would be technically correct to say, "reveal the data of discriminated-against users" -- you can turn the phrase into an adjective by hyphenating it like I did there, but it's very awkward.
That said, I'm not sure what you mean by "discriminated against", "users", and "operator" here. "Discriminated against" is normally used to describe the victims of some sort of prejudice, like "The racist discriminated against black people". Is that what you're talking about? "Discriminate" can also mean to make fine distinctions, like "People with color blindness often cannot discriminate between blue and green." But if you're not referring to prejudice, you may want to use different words.
"Operator" can mean a person who control a piece of equipment, like "the operator of the lathe in the factory". Or it can refer to a mathematical function, like "the conventional arithmetic operators are plus, times, minus, and divided by". There are other less common meanings and perhaps you mean one of them.