Oktane Preview with Harish Peri, Invisible Prompt Attacks, and the weekly news! - Harish Peri - ESW #421

Oktane Preview with Harish Peri, Invisible Prompt Attacks, and the weekly news! - Harish Peri - ESW #421

Author: Security Weekly Productions August 25, 2025 Duration: 1:49:28

Interview with Harish Peri from Okta

Oktane Preview: building frameworks to secure our Agentic AI future

Like it or not, Agentic AI and protocols like MCP and A2A are getting pushed as the glue to take business process automation to the next level. Giving agents the power and access they need to accomplish these lofty goals is going to be challenging, from a security perspective.

How do put AI agents in the position to perform broad tasks autonomously without granting them all the privileges? How do we avoid making AI agents a gold mine for attackers - the first place they stop once they hack into our companies? These are some examples of the questions Okta aims to answer at this year's Oktane event, and we aim to kick off the conversations a little early - with this interview!

Segment Resources:

Topic - Indirect Prompt Injection Getting Out of Hand

Reports of indirect prompt injection issues have been around for a while. Of particular note was Michael Bargury's Living off Microsoft Copilot presentation from Black Hat USA 2024. Simply sending an email to a Copilot user could make bad stuff happen.

Now, at Black Hat 2025, we've got more: the ability to plunder any data resource connected to ChatGPT (they call these integrations "Connectors") from Tamir Ishay Sharbat at Zenity Labs. The research is titled AgentFlayer: ChatGPT Connectors 0click Attack.

Looks like Google Jules is also vulnerable to what the Embrace the Red blog is calling invisible prompts. Sourcegraph's Amp Code is also vulnerable to the same attack, which encodes instructions to make them invisible.

What's really going to ruffle feathers is the fact that all these companies know this stuff is possible, but don't seem to be able to figure out how to prevent it. Ideally, we'd want to be able to distinguish between intended instruction and instructions injected via attachments or some other means outside of the prompt box. I guess that's easier said than done?

News

Finally, in the enterprise security news,

  1. Drones are coming for you… to help?
  2. One of the most powerful botnets ever goes down
  3. Phishing training is still pointless
  4. Microsoft sets an alarm on its phone for 8 years from now to do post-quantum stuff
  5. vulns galore in commercial ZTNA apps
  6. GenAI projects are struggling to make it to production
  7. Adblockers could be made illegal - in Germany
  8. Windows is getting native Agentic support
  9. Automating bug discovery AND remediation?
  10. Public service announcement: time is running out for Windows 10

All that and more, on this episode of Enterprise Security Weekly.

Show Notes: https://securityweekly.com/esw-421


Hosted by Adrian Sanabria, Enterprise Security Weekly (Video) is a deep dive into the complex world of protecting large organizations. This isn't just a headline recap; it's a practical, analyst-level discussion for security professionals who need to understand the "why" behind the news. Each episode from Security Weekly Productions brings together a seasoned panel including co-hosts like Katie Teitler-Santullo, Ayman Elsawah, Jason Wood, Jackie McGuire, and Sean Metcalf to dissect emerging threats, architectural shifts, and the tools that promise to help. You'll hear candid evaluations as they put security vendors and their claims under the microscope, separating hype from genuine utility. The conversation revolves around actionable intelligence and strategic trends that empower defenders to build more resilient environments. Tuning into this podcast provides a consistent, informed perspective that cuts through the noise of the daily alert cycle, offering clarity and context that's often hard to find. It’s a video format that adds a layer of connection and detail to these technical discussions, making complex topics more accessible. If your work involves making critical decisions about enterprise security posture, this series serves as a vital resource for staying informed and ahead of the curve.
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