There is a distinction to be made among pension funds.
Most pension funds that are considered “unfunded” are those used before 2000. Since 2000, there are only a few of them left, and the presentation now shows only funded pension funds.
Let me explain. In both cases, both the employee and employer contribute to the pension fund. An unfunded fund is one in which those amounts are not protected; they are not put in a separate account and are not managed separately. The contributions are collected in an unfunded model and the payments come right out of the consolidated fund.