DNS Security

Analyzing Data for Business and Security Signals

Domain name registries and registrars play a critical role in the functioning of the internet, serving as gatekeepers to the DNS. As such, they have an important responsibility to ensure the security and stability of the DNS but also to promote the use of a domain name in a meaningful way for the end user. To be more efficient in achieving these goals, the domain name industry has started to become more open to the idea of leveraging their own internal data to gain insights about their current business.

Minimized DNS Resolution: Into the Penumbra

Over the past several years, domain name queries - a critical element of internet communication - have quietly become more secure, thanks, in large part, to a little-known set of technologies that are having a global impact. Verisign CTO Dr. Burt Kaliski covered these in a recent Internet Protocol Journal article, and I'm excited to share more about the role Verisign has performed in advancing this work and making one particular technology freely available worldwide.

OARC-40: Notes on the Recent DNS Operations, Analysis, and Research Centre Workshop

OARC held a 2-day meeting in February, with presentations on various DNS topics. Here are some observations I picked up from the presentations in that meeting... In a world where every DNS name is DNSSEC-signed, and every DNS client validates all received DNS responses, we wouldn't necessarily have the problem of DNS spoofing. Even if we concede that universal use of DNSSEC is a long time off ...

Verisign’s Role in Securing the DNS Through Key Signing Ceremonies

Every few months, an important ceremony takes place. It's not splashed all over the news, and it's not attended by global dignitaries. It goes unnoticed by many, but its effects are felt across the globe. This ceremony helps make the internet more secure for billions of people. This unique ceremony began in 2010 when Verisign, ICANN and the U.S. Department of Commerce's National Telecommunications and Information Administration collaborated...

Domains Under the Most-Abused TLDs: Same Old DNS Abuse Trends?

While threat actors can use any domain across thousands of top-level domains (TLDs), they often have favorites. For instance, you may be familiar with Spamhaus's 10 most-abused TLDs for spamming. WhoisXML API researchers recently built on this list by analyzing 40,000 newly registered domains (NRDs) that sported some of the listed unreputable TLDs. We called this study "DNS Abuse Trends: Dissecting the Domains Under the Most-Abused TLDs."

DNSAI Compass: Six Months of Measuring Phishing and Malware

The DNS Abuse Institute recently published our sixth monthly report for our project to measure DNS Abuse: DNSAI Compass ('Compass'). Compass is an initiative of the DNS Abuse Institute to measure the use of the DNS for phishing and malware. The intention is to establish a credible source of metrics for addressing DNS Abuse. We hope this will enable focused conversations, and identify opportunities for improvement.

The DNS at the IGF

It's unclear what this means in the long run. Do bad actions and actors go undetected? Do we lose our visibility into network management? What is a "secure" network, and how do we secure it using traditional techniques of network perimeter traffic inspection when all the network traffic is opaque? If we can't see inside the DNS anymore, then how can we tell if (or when) the DNS has been captured by one or two digital behemoths?

Some Random Notes from IETF 115

The IETF held its 115th meeting in London in November 2022. This was another in the set of hybrid meetings with specific support for online attendees in addition to the normal face-to-face meetings for the week. In no particular order, here are a few of my impressions from the IETF meeting.

Call for Participation – ICANN DNSSEC and Security Workshop for ICANN76 Community Forum

Are you doing something interesting with DNS, DNSSEC, or routing security that you would like to share with the larger DNS community at the ICANN 76 meeting in March 2023? If so, please send a brief (1 -- 3 sentence) description of your proposed presentation to [email protected] by the close of business on Friday, 20 January 2023. Are you doing something interesting with DNS, DNSSEC, or routing security that you would like to share with the larger DNS community at the ICANN 76 meeting in March 2023?

Achieving Multi-Stakeholder Progress on DNS Abuse

DNS Abuse and how to address it has been the topic of intense, often conflictual, and rarely conclusive discussions for many years, starting with the very definition of the term and the degree of responsibility bestowed upon DNS operators. In 2018, after several months of intersessional work, the Internet & Jurisdiction Global Conference brought together in Ottawa more than 200 key stakeholders to define a roadmap to address certain jurisdictional challenges on the Internet, including DNS abuse.