According to Allianz Global Corporate & Specialty, the damage caused to the global economy by online crime in 2016 (including direct losses, lost profits and system restoration costs) exceeded $575 billion. This is about 1% of global GDP.
I am sure that the results of 2017 will not be encouraging. The last two major waves (WannaCry and Petya ransomware attacks) have once again corporate networks cannot withstand virus luxembourg mobile database and other information threats. The situation is even worse for small and medium businesses, government and educational institutions - often their protection system is represented only by antivirus software on workstations. This, of course, is not enough to protect against a variety of modern information security threats: where an antivirus will repel an attack by a ransomware, another can "slip through" through vulnerabilities in unupdated software.
A reasonable response to the growing threat level is to strengthen protection at the network level. Network perimeter protection and local network segmentation (division into several subnets with mandatory filtering of inter-segment traffic) provides protection against virus penetration into the protected circuit or allows preventing complete infection of the network and critical blocks (computers of the financial department, accounting, database servers, backups, production process control systems).