First reported youtube.com
Research · latest
First reported semgrep.dev
Researcher poisons open-weight AI model for under $100
Researcher Katie Paxton-Fear of Manchester Metropolitan University and Semgrep demonstrated that she could install a reliable backdoor into an open-weight AI model in about an hour for under $100, using only ten fine-tuning examples to make the model emit remote-code-execution-vulnerable code even for novel prompts, with larger models being easier to poison. The Register also cites a related PoC by Origin's David Kaplan (originsec/lora-backdoor-poc) that creates a compromised model designed to exfiltrate data via a send_email tool call. Details →How the wire is made
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