Leo Visser

Consultant AI & Cloud

BBTG | Build Beyond Technology Group

Netherlands

About

Active in the IT industry since 2012, Leo Visser is a Subject Matter Expert for Azure and AI Foundry at BBTG. He advises organizations on AI, automation, and cloud architecture, combining tools like PowerShell, Power Platform, Azure Logic Apps, and native Azure services. His work strongly focuses on security, sustainability, and long-term value. Leo is a Microsoft PowerShell MVP.
Talk

Leo Visser | No 0-day required, just target the AI coding assistant!

Security, GitHub Copilot, SupplyChain, VSCode, Dependencies

Do you trust your AI coding assistant? What if I told you that attackers have found ways to manipulate it and attack your code? With everyone now using AI coding assistants it’s time to look at the risks!

During this talk I’ll show you several new techniques attackers are already using. This will range from hidden messages (ASCII smuggling) to abusing mistyping and characters that look the same (typosquatting). I will also show how an LLM can make mistakes when generating code (hallucinations). Did you know that a smart attacker can abuse this too?

When you join this talk, you’ll learn how to spot hidden text in your instruction file and prompts. I will also explain how to set up a trusted dependency repository to prevent the malicious code from entering your production environment!

TBA