What is evasion in cyber security? ?

Evasion in cyber security refers to the act of bypassing or avoiding detection by security measures such as firewalls, intrusion detection systems, or antivirus software. Attackers use evasion techniques to disguise their malicious activities and make it harder for security tools to detect and block their actions. Evasion techniques can include encryption, obfuscation, fragmentation, and other methods to hide or alter the characteristics of malicious code or network traffic. By evading detection, attackers can successfully carry out their attacks without being detected or stopped by security measures.