Who is at fault if a car is driving and doesn't stop at a stop sign and a car hits them from the back?

In this scenario, the car that failed to stop at the stop sign is primarily At Fault for violating traffic laws. The driver who hit them from behind may also share some responsibility, especially if they were following too closely or not paying adequate attention. Ultimately, fault can depend on specific circumstances, such as visibility and speed. However, the violation of the stop sign typically places the majority of liability on the first driver.