munition. jenna: we would like to take credit for something that is not good but evil say it is not us are our systems susceptible to this type of virus? >> absolutely. there is no such thing as perfect security. we would be foolish to believe we're not vulnerable to this kind of attack, when we talk about systems that control our critical infrastructure. things designed to take out utilities. i've been on before talking about those same things. it is double-edged sword. dynamite was invented by peaceful purposes by alfred nobel. it is being used for different things. this could be used for good but with a couple tweaks could be used for very bad things. jenna: context, morgan. i wonder what your computer look likes like at home. how can i make sure the microphone doesn't go on or camera doesn't go on computer and record everything i'm doing. is there anything you suggest to your family and friends when it comes to computer safety and protecting viruses? >> simple things.