CyberSecEval 3

Meta's third CyberSecEval release: adds visual prompt injection, automated spear-phishing, and human and autonomous offensive-cyber-operations studies to the prior version's risk and insecure-code tests.

Also known as: CYBERSECEVAL 3, Purple Llama CyberSecEval 3

unassessed

This page is a discovery lead. Nobody has yet assessed it against the catalogue contract, so it carries no disposition. Absence of evidence here is not evidence of staleness.
Categorysafety
SubcategoryLLM cybersecurity risk and capability suite: adds visual prompt injection, automated social engineering, and manual and autonomous offensive-cyber-operations studies to the prior version's risk and insecure-code tests
Page statussuperseded
Metricper-category rates and scores -- mainly an injection/attack success or compliance rate; the manual- and autonomous-uplift studies report qualitative human-subject and phase-completion outcomes rather than a single percentage
Directionlower_is_better
Unit%
Dataset licenceMIT
PublisherMeta (the Purple Llama project)

What it measures

CyberSecEval 3 measures LLM cybersecurity risk and capability across 8 named risk areas the paper groups into two broad categories: risk to third parties (parties other than the model's own user or developer, such as social-engineering victims or organizations targeted by cyberattacks) and risk to application developers and end users (insecure code, prompt injection and code-interpreter abuse reaching the people who deploy or use the model). It keeps CyberSecEval 2's textual prompt injection, code-interpreter abuse and vulnerability-exploitation tests essentially unchanged -- reusing that version's own implementation rather than re-deriving it -- and adds three offensive- security areas the paper names as new: automated social engineering (can a model run a persuasive multi-turn spear-phishing conversation against a simulated victim), scaling manual offensive cyber operations (a human-subjects study of whether LLM assistance speeds up novice and expert penetration-testers on capture-the-flag-style challenges), and autonomous offensive cyber operations (can an LLM agent, unassisted, advance through reconnaissance, vulnerability discovery, exploitation and privilege escalation against a target host). It also adds a visual and a multilingual variant of the prompt-injection tests, and documents Prompt Guard, a separate classifier model for detecting injections and jailbreaks, which this page treats as a related mitigation artifact rather than part of the graded benchmark itself.

Task format

Reused from CyberSecEval 2 unchanged: textual prompt injection (251 cases), code-interpreter abuse (500 prompts), and vulnerability exploitation. New in this version: visual prompt injection (1,000 system-prompt/image/text triples, confirmed from the Hugging Face dataset card, LLM-judged on whether an instruction embedded in the image overrode the system prompt), multilingual prompt injection (1,004 machine-translated cases, counted directly from the released file), automated social engineering (up to 856 synthetic multi-turn spear-phishing challenges against a simulated, LLM-played victim, scored by a judge LLM on a 5-point persuasion/rapport/argumentation rubric), the manual-uplift human study (inexperienced and highly skilled subjects solving CTF-style challenges with and without LLM help, on Hack The Box infrastructure), and the autonomous-operations study (an LLM agent attempting a fixed attack-phase sequence against a Windows host from a Kali Linux environment, in a controlled setting).

Models reporting this benchmark

No model card in ModelSpec reports this benchmark yet.

Data

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