A Trojan is a program that is sent to a user that allows an attacker to control functions of the target computer, recover information from the target or to delete or damage files on the target. The name Trojan is given because the program will usually come attached to some other program or file that entices you to run it. There are a wide variety of Trojans any number of which can be programmed to capture passwords as they are typed and to email or transmit them to a third party. To protect yourself against Trojans, you should never execute or download software or files that are not from a trusted source. It is critical that anyone working on internet use a virus protection program (which should catch most Trojans.) Note that since a Trojan requires the password to be typed or stored in order to be recovered, this is not an effective way to recover your own password. It could explain, however, how someone could lose their password to a hacker. Sending someone a Trojan program is certainly illegal and we do not recommend or condone this activity. A Trojan is unlikely to be effective in recovering a particular account password since it requires the target to install it. However, hackers will often bulk mail Trojans to thousands of people in the hope that a small percentage will get caught. Legitimate account holders who may have been caught by a Trojan and can authenticate themselves should contact their service provider to have their account passwords reset.