adversarial tactics，techniques，and common knowledge是什么

Adversarial tactics, techniques, and common knowledge refer to strategies that are used by attackers to compromise information security systems. These tactics may include social engineering, phishing, exploiting vulnerabilities, and hacking. Common knowledge refers to public information or widely known facts that can be used in attacks. Effective defense against such tactics requires a comprehensive and proactive approach that includes risk assessment, employee training, and the implementation of appropriate security controls.