How can airports protect themselves against cyber-attacks?

Just over a week ago, Heathrow and Brussels were among a slew of European airports disabled by a cyber-attack. The origins of the attack aren’t clear but fingers point at Russia. It takes a lot of effort and resources to take down Europe’s busiest airport but that is what these fraudsters and criminals apparently have. So, what can smaller companies do in the face of these attacks? Gavin Millard, VP of Intelligence at Tenable joined Joe Lynam on the show.