For example, a Trojan horse might appear to be a computer game, but once you double-click it, the program starts writing over certain parts of your hard drive, corrupting your data. While this is certainly something you want to avoid, it is good to know that these malicious programs are only dangerous if they are given a chance to run. Also, most antivirus programs can catch Trojan horses when scanning for viruses. Unlike viruses, however, Trojan horses don't replicate themselves. Though it is possible for a Trojan horse to be attached to a virus file that spreads to multiple computers.
"I'm a huge Ira Glass fan; I'm a huge fan of radio in general. I don't have a whole lot of time to watch TV, but I'm a big podcast listener, a big radio listener and a fangirl to a certain extent... [But] in terms of storytelling, we wanted a way for all of the prisoners to be able to experience [Piper's fiance's] betrayal. He's sort of co-opting her experience to make himself feel useful and special, and radio was a great way to do that... I find This American Life so compelling, and I engage on a very deep level with these stories, so I wanted that in our show — where everyone is quiet and listening."
Due to the popularity of botnets among hackers and the availability of advertising services that permit authors to violate their users' privacy, Trojans are becoming more common. According to a survey conducted by BitDefender from January to June 2009, "Trojan-type malware is on the rise, accounting for 83-percent of the global malware detected in the world." Trojans have a relationship with worms, as they spread with the help given by worms and travel across the internet with them.  BitDefender has stated that approximately 15% of computers are members of a botnet, usually recruited by a Trojan infection.