When I was going to download a game video demo from Gamespot, I was prompted to accept the license for their download manager "powered by Kontiki". Out of curiousity this time, I decided on reading, and guess what - bullet 3 says: "You understand that Content will be stored on your personal computer until it is deleted at your direction or until it is automatically deleted by the operation of the Kontiki Delivery Network. You will be asked whether you agree to participate in the relay operations of the Kontiki Delivery Network that assist in the acceleration of delivery of Content. If you agree to participate, you are agreeing that solely as part of the operation of the Kontiki Delivery Network Kontiki may through the Kontiki Software access Content stored on your computer and reproduce portions or all of this Content in order to distribute such stored Content to other users of the Kontiki Delivery Network who request delivery of such Content." (sic) in other words, your computer will become a server for any files downloaded!! Obviously, if nothing is downloaded and the Kontiki software is not installed on your machine, then nothing's compromised. Lesson - always read the fine print.