APT group is a special threat vector, typically consisting by a nation state or state-sponsored actors. APT group possess extraordinary skill and resources-enabling them to infiltrate and exfiltrate an organizations' network. In recent times, we found some valuable leads from APT cases which shows that the tactics and techniques are different from before. In this speech, we will highlight the differentiates by using MITRE ATT&CK framework and disclose the impact on defense. We will provide useful recommendations to assist every company and person to take the right response when they encountered APT attack.