Level 12
Malware Tester
You’ve probably heard the stories by now: one of the fundamental technologies that keeps the internet working has recently become a regular target for attackers.

Earlier this month, the UK’s National Cyber Security Centre released an advisorywarning of DNS hijacking attacks across multiple regions and sectors. (This was their second such advisory in six months.) Last month, in their 2019 Global DNS Threat Report, IDC highlighted an increased number of DNS attacks and the subsequent costs. And earlier this year, ICANN warned of “ongoing and significant risk to key parts” of the internet’s DNS infrastructure, calling for the adoption of more robust security implementations.

Cisco Talos, Cisco’s threat intelligence group, had been watching DNS closely during this time. Talos spotted multiple attacks relying on DNS hijacking and manipulation as their main infection vector, releasing research that prompted many of these warnings.

Attacks against DNS is of significant concern. But what exactly is DNS? How is it being attacked? And what can be done to protect against these attacks?