Oct 1, 2026 · 7 min
Google tests Gemini 4 Argonne against cyber threats
Gemini 4 enters the ring, MI5 flags research ties, Custom GPTs deliver malware
The episode connects frontier AI capabilities with government vetting, intelligence concerns, and increasingly persuasive malware delivery.
- 1Google is giving trusted cyber defenders limited access to Gemini 4 Argonne for complex security tasks.
- 2The model’s performance is framed through comparisons with GPT-6 Astra and a U.S. government pre-release process.
- 3Custom GPTs and concerns involving Chinese research funding show how AI intersects with both attacks and national security.
Don't miss
The episode’s clearest warning is the use of Plus 5.6 to redirect people toward a fraudulent backup site in a ClickFix malware campaign.
The brief
Sarah Lane opens with Google’s limited release of Gemini 4 Argonne to trusted cybersecurity defenders, positioning frontier AI as a tool now being tested against complex security work.
The model’s capabilities are discussed alongside benchmark comparisons with GPT-6 Astra and Google’s participation in a U.S. government pre-release process, tying performance to institutional scrutiny.
The episode also flags MI5 concerns about Chinese research funding, widening the story from model capability to the security implications of who supports advanced research.
A sharper operational threat comes from Plus 5.6, an attacker-created Custom GPT that redirected users toward a fraudulent backup site in a ClickFix malware campaign.
Taken together, the headlines show AI becoming part of both defensive evaluation and social engineering, while the full stories continue through CISO Series.
Books & mentions
CISOseries.com
The episode directs listeners there for the full stories behind these cybersecurity headlines.