John Todd of Quad9

John Todd of Quad9

In this episode of Modern Cyber, Jeremy sits down with John Todd, General Manager of Quad9, for a deep dive into the critical role of DNS in cybersecurity. They discuss how DNS has evolved, the increasing risks of DNS interception, encryption standards, and the challenges of maintaining a private, secure, and censorship-resistant Internet.

John shares insights into recursive DNS as a cybersecurity tool, the political and regulatory pressures on DNS providers, and why DNS-based censorship is a growing concern worldwide. Plus, they explore the role of Quad9 in protecting user privacy, the importance of trust in Internet infrastructure, and how governments and corporations are influencing DNS operations.

Tune in to understand why DNS security is more critical than ever and what the future of DNS might look like.

About John Todd

John Todd is the General Manager for Quad9. He has been involved in internet infrastructure, networking operations, and DNS-related roles for 35 years as an engineer, manager, and IP enthusiast.

Quad9 Website - https://quad9.net/

DNS Haiku - https://www.cyberciti.biz/humour/a-haiku-about-dns/

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Episoder(138)

This Week in AI Security - 15th October 2026

This Week in AI Security - 15th October 2026

Back to the normal fifteen-minute format this week, across three themes: a couple of fresh attacks, a run of agent-behavior breakouts, and the policy response forming around them. Attackers are now dr...

15 Okt 17min

Søren Brandbyge & Adam Burns on Email and DNS

Søren Brandbyge & Adam Burns on Email and DNS

Email is the one application almost everyone on the internet uses every single day, and almost nobody understands how fragile it really is. In this two-part episode, Jeremy Snyder sits down with two g...

13 Okt 50min

This Week in AI Security - 8th October 2026

This Week in AI Security - 8th October 2026

Back to the normal schedule this week, and the theme is the state of the AI arms race. Three major reports landed at once, from Microsoft, Google, and Anthropic, and the shared message is that attacke...

8 Okt 14min

This Week in AI Security - 1st October 2026

This Week in AI Security - 1st October 2026

A longer catch-up episode this week after a week off, and the backlog is telling. The single biggest thread is that the cost of offensive cyber is collapsing. An open-weight model, Z.ai's GLM 5.3, is ...

1 Okt 26min

Richard Stiennon of IT-Harvest

Richard Stiennon of IT-Harvest

Jeremy Snyder sits down with industry analyst Richard Stiennon, founder of IT-Harvest and author of the annual Security Yearbook, for a tour of the cybersecurity industry from the inside. Richard has ...

24 Sep 47min

This Week in AI Security - 17th September 2026

This Week in AI Security - 17th September 2026

A shorter episode this week, recorded from the sidelines of Mind The Sec, soon to be Black Hat Latin America. The headline is distillation. Two separate disclosures, one from Anthropic and a joint adv...

17 Sep 9min

Jonathan Schaeffer of Kind

Jonathan Schaeffer of Kind

In this episode of Modern Cyber, Jeremy is joined by Jonathan Schaeffer, a 40-year AI veteran and the inventor of Kind, to discuss the sweeping evolution of artificial intelligence. Jonathan traces th...

11 Sep 48min

This Week in AI Security - 10th September 2026

This Week in AI Security - 10th September 2026

This week's episode covers several stories plus a couple of topics that sit just outside the strict security lens but are too important to skip. The theme is hard to miss. AI agents are now running th...

10 Sep 14min

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