"Bjorn Damm" <bjornd.invalid@rixmail.se> wrote in message 
news:43876e5c$0$41144$14726298@news.sunsite.dk...

http://www.guardian.co.uk/science/story/0,3605,1650295,00.html

<quote>
Scientists, be on guard ... ET might be a malicious hacker

Ian Sample, science correspondent
Friday November 25, 2005
The Guardian

As if spotty teenagers releasing computer viruses on to the internet from 
darkened rooms were not enough of a headache. According to a scientific 
report, planet Earth's computers are wide open to a virus attack from 
Little Green Men.

secureing against external attack is what every system is made to cope with
(ok, most systems arn't exactly secure, but they should be)
interesting thought though
inject pre made data intot the radio telescope that would be executed 
somewhere along the way

aliens take over the world via our own computers ?
i think not :)