You’re sitting at your desk, and you click on something in your email, or on a website, that you shouldn’t. Some blinking red box flares onto your screen, and you know you’re in trouble. Worse yet, maybe everything goes black and your computer has just become the world’s most expensive fishing weight. Now just imagine instead of your computer, it’s your city.

It’s not impossible, according to a new report from Telegraph, which cites the alarming statements from Robert Hannigan, the U.K.’s Government Communication Headquarters chief. During a rare recent public appearance, at the Cheltenham Science Festival, he said there are nation states developing programs that could attack and shut down significant assets. For example, a major city. READ MORE