[KongchangAI]
Person

Johann Rehberger

Johann Rehberger is an AI security researcher whose work focuses on identifying and analyzing security vulnerabilities in large language models and AI agents. He has made significant contributions to the study of prompt injection attacks, a class of vulnerabilities that can cause AI systems to execute unintended instructions supplied through manipulated inputs.

Timeline (last 90 days)

Oct 6

Security researcher Johann Rehberger demonstrated that embedding specific text in an email or webpage can cause an agent to leak user data or perform deletions.

Unverified50%
Sep 11

In 2024, Johann Rehberger demonstrated an indirect injection attack targeting ChatGPT's memory feature, causing the model to persistently execute malicious behavior through instructions embedded in user-uploaded documents.

Unverified50%
Sep 8

In 2023, security researcher Johann Rehberger demonstrated an attack that exploited indirect prompt injection to cause a ChatGPT plugin to leak users' conversation history.

Unverified50%

All Facts (4)

Source Articles