SET, or Social-Engineer Toolkit, is a leading open-source framework pre-installed in Kali Linux (version 8.0.3), designed for ethical hackers and penetration testers. This social engineering toolkit for cybersecurity automates attacks like phishing, credential theft, and payload delivery, making it a premier penetration testing tool for social engineering assessments. With a 30.40 MB footprint and over 10 attack vectors, SET empowers red teams to simulate real-world threats, integrating seamlessly with Metasploit for robust security testing.