Nowadays, we think of artificial intelligence as the solution to many problems and as a tool that can help humanity achieve huge things faster and with less effort. Of course, those thoughts are not far from being true, but it is really important to be aware of the issues that may arise until then and how those issues can affect us humans and our environment.

Among the issues with artificial intelligence (AI from now on), one of the most relevant is called “data leakage.” This refers to a machine learning problem in which the data used to train the model (the technique that we use to predict an output from an input data set) contains unexpected information that could lead to an overestimation of the model’s usefulness when run with real data.