Arvind Krishna & Nikesh Arora: Quantum Threat, Open vs Frontier AI, AI Cyber Warfare & SaaS Collapse

In a 40-minute All-In conversation, Arvind Krishna and Nikesh Arora discuss quantum threats to encryption, a shift of enterprise AI use to open-weight models, AI-driven vulnerability finding, and who is accountable for what AI software does. Speakers are identified from context in auto captions.

Why it matters

The same thing, for different readers.

What it means for you

Two security-industry leaders say companies should switch to quantum-safe encryption now, and that firms releasing AI cannot disown its actions.

For lawmakers

Krishna and Arora say AI slowdowns would not bind other countries, but that companies releasing AI products should be held accountable under existing rules.

For researchers

Krishna says AI-found software flaws are only the ones known how to find, and that agent-written code cannot be fully verified.

In their own words

Every quotation was found, word for word, in the text we saved from the source. That shows the words are there; it does not make them true, or prove the speaker meant them as quoted.

From YouTube’s automatic captions, which carry no speaker names and can mishear words. Where the speaker is known only from context, the quotation says so.

“If you build something, you're accountable for it.”
Nikesh Arora, CEO, Palo AltoAnswering a question on whether the argument that an arms race makes AI development unstoppable should end calls to stop it.
Found word for word in the sourceHear it at 23:27 ↗Speaker known from context, not confirmed by listening
“the agents can also do eval basically make sure that everything they can find is actually fixed before it ever goes out. All that said, we're only finding all the flaws that we know how to find.”
Arvind KrishnaAsked whether agent-written code is error-free; says coding agents write about half the code at the speaker's company.
Found word for word in the sourceHear it at 20:23 ↗Speaker known from context, not confirmed by listening
“I don't know whether it'll be 75 to 90% but that's the range I would put of all token usage will go to open weight models”
Arvind KrishnaPredicting where enterprise AI usage goes, citing cost, protection of company data and the gap to Chinese open-weight models.
Found word for word in the sourceHear it at 14:22 ↗Speaker known from context, not confirmed by listening

The record

Questions
How is AI used in attacks, defence and war? · Who can demand evidence, delay a release or stop an unsafe deployment?
People
Arvind Krishna (Speaks) · Nikesh Arora (Speaks)
What we read
We read the whole source.
Found by
The Radar, run of October 22, 2026, via yt-all-in-podcast (tier 1: the source’s own channel or an official record)
Cite this
All-In Podcast, “Arvind Krishna & Nikesh Arora: Quantum Threat, Open vs Frontier AI, AI Cyber Warfare & SaaS Collapse”, October 21, 2026. Entry in the Ctrl AI Base, https://ctrlai.com/base/all-in-2026-10-21-krishna-arora-quantum-cyber
Our notesAuto captions with no speaker labels. Speaker assignment is inferred: one guest refers to the other as 'Arvin' and 'Nik', and the quotes are attributed from those turns, so all are speakerCertain false. The hosts are not named in the captions. Roles and employers of the guests are not stated in the captions, so none are given. Captions garble words ('Kim K3', 'mouse' for Mythos).