Talk about mobility. It doesn't get any more mobile than taking your laptop onto the International Space Station. Nor is catching or bring a computer virus up there. Wired has reported that two laptops aboard the ISS has caught a computer virus.
You'd really have to wonder with all the security involved, how this can happen.
Sadly, this is not the first time. More than that, NASA, at least publicly, is not calling this a big problem. Privately...
According to NASA, everything is scanned before it's allowed to go up to the ISS. A storage device, as it may be the case here, was taken up there without being scanned or authorization. Both possibilities points a great lapse in judgment and likely violation of protocols to the greatest degree.
Regardless, if this can happen to astronauts more than 200 miles above Earth, it can happen to any of us. I'm sure the Mac guys should have a field day with this one.