At the 2018 World Economic Forum, global leaders voiced concerns about the growing trend of cyberattacks targeting critical infrastructure and strategic industrial sectors, citing fears of a worst-case scenario that could lead to a breakdown of the systems that keep societies functioning. A painful example was the May 2017 WannaCry ransomware attack in which a worm rapidly spread through a number of computer networks, affecting more than 150 countries and more than 400,000 endpoints.
One of the largest victims of the WannaCry attack was the National Health Service in England and Scotland, where up to 70,000 computers, MRI scanners, and blood-storage refrigerators may have been affected. In this global threat environment, the need for Computer Security Incident Response Teams (CSIRTs) has become ever more critical. CSIRTs are expert teams that use their specialized knowledge and skills to detect and respond to computer security incidents. In the broader internet community, these teams form a "global network" from a diverse group of organizations and sectors, such as critical infrastructure, government, industry, and academia. In this blog post, the first in a series on CSIRTS, I talk about the work of CSIRTs and their importance in the global threat landscape.