“The enemy with no face”. No, it’s not the latest Dwayne “The Rock” Johnson Hollywood action movie, but the tagline from the U.S. Army’s latest cyber warrior recruitment ad.

Fighting hackers is hard enough, but a huge shortage of cyber workers could leave the government exposed. According to numbers from the Bureau of Labor Statistics, there were more than 209,000 unfilled cybersecurity jobs in the U.S. in 2016, although the number could be as high as 350,000.