Such cyberattacks in the future are hardly likely to be as amusing, if they occur. Hey, if you think it's annoying when your friends send you all those emails about some horrible thing they were sent that's Really Going To Happen, but is just a hoax, imagine that ratcheted up on steroids if a horrible-but-real-sounding hoax is s coming from someone who's gained control of the Emergency Alert System.
Then again, at least we know now how Eric Blofeld and all those James Bond villains were able to get access to the world's airwaves and demand $100 billion.