collaborators

6 papers

cs.CR2026

Evading Chain-of-Thought Monitoring Through Model Poisoning

Giorgio Severi, Shujaat Mirza, Blake Bullwinkel +1

Chain-of-thought (CoT) monitoring is an increasingly important component of AI safety stacks but relies on the assumption that a model's reasoning trace is informative about its ac…

cs.LG2026

GRP-Obliteration: Unaligning LLMs With a Single Unlabeled Prompt

Mark Russinovich, Yanan Cai, Keegan Hines +3

Safety alignment is only as robust as its weakest failure mode. Despite extensive work on safety post-training, it has been shown that models can be readily unaligned through post-…

cs.CR2026

The Trigger in the Haystack: Extracting and Reconstructing LLM Backdoor Triggers

Blake Bullwinkel, Giorgio Severi, Keegan Hines +3

Detecting whether a model has been poisoned is a longstanding problem in AI security. In this work, we present a practical scanner for identifying sleeper agent-style backdoors in…

cs.CR2025

A Systematization of Security Vulnerabilities in Computer Use Agents

Daniel Jones, Giorgio Severi, Martin Pouliot +7

Computer Use Agents (CUAs), autonomous systems that interact with software interfaces via browsers or virtual machines, are rapidly being deployed in consumer and enterprise enviro…

cs.CR2025

A Representation Engineering Perspective on the Effectiveness of Multi-Turn Jailbreaks

Blake Bullwinkel, Mark Russinovich, Ahmed Salem +8

Recent research has demonstrated that state-of-the-art LLMs and defenses remain susceptible to multi-turn jailbreak attacks. These attacks require only closed-box model access and…

cs.AI2025

Lessons From Red Teaming 100 Generative AI Products

Blake Bullwinkel, Amanda Minnich, Shiven Chawla +23

In recent years, AI red teaming has emerged as a practice for probing the safety and security of generative AI systems. Due to the nascency of the field, there are many open questi…