How the DNSChanger shutdown changed cybersecurity

On the morning of July 9, 2012, the world braced for an “internet doomsday”: a full-scale crash of the global internet.

Except it didn’t happen. And that non-event represented the culmination of a long and successful coordinated action taken between a huge number of organizations, spearheaded by the FBI.

It was one of the most remarkable operations in the history of cyber crime, and it led to lasting changes in how professionals think about and defend against malicious cyberattacks. 

Here's how the DNSChanger malware reaction changed cybersecurity forever.