The safety of refrigerated KFC chicken depends on various factors, including the temperature at which it was stored, the condition of the chicken at the time of purchase, and how it was handled after purchase. Generally, cooked chicken can be safely stored in the refrigerator for up to 3-4 days if it has been stored properly.
If you've purchased KFC chicken and it has been refrigerated promptly and consistently maintained at a temperature below 40°F (4°C), it should be safe to eat within 3-4 days. However, if there are any signs of spoilage, such as a foul odor, unusual texture, or mold growth, do not consume the chicken and discard it immediately.
Always use your best judgment and follow proper food safety practices. When in doubt, it's better to err on the side of caution and avoid consuming food that may be unsafe.