This document discusses adversarial machine learning challenges and countermeasures in cybersecurity. It begins by introducing the topic of adversarial machine learning and its threats to cybersecurity systems that incorporate machine learning models. It then reviews related literature on adversarial attacks against machine learning systems. The document explores different types of adversarial attacks, such as evasion attacks and poisoning attacks, and provides real-world examples. It also discusses the motivations and goals of adversaries launching these attacks. Finally, it delves into common attack algorithms and methods used to generate adversarial examples.