1. The first kind of keylogger is the hard ware version it is a device you can atach to the computer and it will look like it is a regular USB device. It will record everything that is typed on the computer including passwords, credit card numbers and anything else.
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2. Software keyloggers also work but most anti-virus programs block them now currently this one still works. You can get it from here: http://adf.ly/dQgX2
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