Is it safe to leave cooked meat out overnight?

According to the USDA, cooked meat should not be left out at room temperature for more than two hours, bacteria begin to multiply rapidly between 40° and 140° F. Cooked meat must be kept in the refrigerator in a sealed container at 40° F or lower if you plan to eat it later.

Some bacteria can grow even at refrigerated temperatures, so it is important to reheat cooked meat to an internal temperature of 165° F before eating it.