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Taking your PHP Website Offline
  

Taking your PHP Website Offline

Sometimes the best move is to take your vulnerable site offline. Here’s how I handled it with my own site.

AI Security Boundaries
  

AI Security Boundaries

Ashish Rajan and I discuss the limits of AI guardrails, why prompt injection remains a challenge, and where responsibility for

DEF CON 34 – Main – Certified Re-Pwned  Escalating All the Way Up -Daniel Monzon, Eric Labrador
  

DEF CON 34 – Main – Certified Re-Pwned Escalating All the Way Up -Daniel Monzon, Eric Labrador

our years after KB5014754 and one year after CVE-2024-49019, every hardening guide says Active Directory Certificate Services is a closed

DEF CON 34 – Main – Breaking the Ethereum Phone  From BootROM to Wallet Signing Keys – Guanxing Wen
  

DEF CON 34 – Main – Breaking the Ethereum Phone From BootROM to Wallet Signing Keys – Guanxing Wen

Crypto phones promise the convenience of a mobile OS with hardware-backed key management. We tested that claim on dGEN1, the

DEF CON 34 – BioHack – AIRGAP BREACHED  – David Castillo-Cornejo, Matthew Woslum, Zee Zinck
  

DEF CON 34 – BioHack – AIRGAP BREACHED – David Castillo-Cornejo, Matthew Woslum, Zee Zinck

A frugal, eDNA sniffing system to audit atmospheric biodata-leaks in the era of Climate change. Current healthcare cybersecurity focuses on

DEF CON 34 – Main – A Provider for the MOFia   Distributed Post Ex Capabilities – Steven Flores
  

DEF CON 34 – Main – A Provider for the MOFia Distributed Post Ex Capabilities – Steven Flores

From time to time I take another pass at WMI to see if there’s anything left in it that hasn’t

DEF CON 34 – AppSec – A Billion User Blast Radius  Owning ChatGPT’s Secure Sandbox – Simcha Kosman
  

DEF CON 34 – AppSec – A Billion User Blast Radius Owning ChatGPT’s Secure Sandbox – Simcha Kosman

OpenAI designed ChatGPT’s sandbox as a secure runtime with network isolation, strict timeouts, and an AI supervisor filtering commands. Extracting

DEF CON 34 – Main – Breaking Local AI Runtimes  Exploiting llama cpp & Ollama – V Tokarev,  O Itach
  

DEF CON 34 – Main – Breaking Local AI Runtimes Exploiting llama cpp & Ollama – V Tokarev, O Itach

Local LLM runtimes now sit inside phones, desktops, and internal servers, but the layer underneath is still ordinary native code.

DEF CON 34 – BugBounty – AI Nightmare  Hacking at 0 Hour – Pedro Paniago
  

DEF CON 34 – BugBounty – AI Nightmare Hacking at 0 Hour – Pedro Paniago

Many of us have heard that AI is just hype. But is that really the case? In this talk, Pedro

DEF CON 34 – Main – Beyond the Ceremony – The 2026 Passkey Attack Surface – Matteo Giordano
  

DEF CON 34 – Main – Beyond the Ceremony – The 2026 Passkey Attack Surface – Matteo Giordano

Passkeys are marketed as phishing-resistant, and the WebAuthn ceremony at their center genuinely is. The catch: almost nobody runs only