Black Mold-basement…what to do?

I recently purchased a new home. The front part of the house in the basement had paneling on it-we removed and found moisture and black mold. Since taking a few pieces off in the corner (didnt remove all paneling yet), it seems to have dried out some, but I need to know what to do about the black mold. I’m still trying to figure out what caused the moisture, but in the meantime I wanted to get some advice on how to handle the mold. Help!