This podcast episode of "Decoded: The Cybersecurity Podcast" explains Trojan horse malware, highlighting that unlike self-spreading viruses or worms, Trojans deceive users into installing them by masquerading as legitimate software. The discussion covers how Trojans infiltrate systems, the various malicious actions they can perform once installed, and common programming languages used in their creation. It further details notorious historical Trojan attacks and provides essential methods for detecting and preventing these deceptive threats, emphasizing user vigilance and security practices.