No, Jindo dogs are not inherently aggressive. Although they have strong prey drives, are known for their protective instincts, and can be aloof or wary around strangers (especially if they perceive a threat to their territory or family), aggression is not a characteristic of the breed when they are properly bred, trained, socialized, and cared for.
If you are concerned by any signs of
aggression or reactivity in your dog, be sure to address it promptly with the help of a professional trainer or behaviorist. Pain, discomfort, or underlying medical conditions can sometimes contribute to changes in a dog’s behavior, so it may also be worth visiting a vet to rule out their health as a cause for their behavior.