The Wall Street Journal: Cybersecurity Experts’ First Task: Find Out How Virus Spread

15 May 2017

Imagine a network of 100 computers. These computers communicate with each other through digital roads. One of the roads is port 445, and it is usually reserved for Windows-running computers to transfer files to each other, or to send stuff to the printer, said Becky Pinkard, a vice president at cybersecurity firm Digital Shadows.