frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Open in hackernews

Show HN: DeepTeam – Penetration Testing for LLMs

https://github.com/confident-ai/deepteam
3•jeffreyip•1y ago
Hi HN, we’re Jeffrey and Kritin, and we’re building DeepTeam (https://trydeepteam.com), an open-source Python library to scan LLM apps for security vulnerabilities. You can start “penetration testing” by defining a Python callback to your LLM app (e.g. `def model_callback(input: str)`), and DeepTeam will attempt to probe it with prompts designed to elicit unsafe or unintended behavior.

Note that the penetration testing process treats your LLM app as a black-box - which means that DeepTeam will not know whether PII leakage has occurred in a certain tool call or incorporated in the training data of your fine-tuned LLM, but rather just detect that it is present. Internally, we call this process “end-to-end” testing.

Before DeepTeam, we worked on DeepEval, an open-source framework to unit-test LLMs. Some of you might be thinking, well isn’t this kind of similar to unit-testing?

Sort of, but not really. While LLM unit-testing focuses on 1) accurate eval metrics, 2) comprehensive eval datasets, penetration testing focuses on the haphazard simulation of attacks, and the orchestration of it. To users, this was a big and confusing paradigm shift, because it went from “Did this pass?” to “How can this break?”.

So we thought to ourselves, why not just release a new package to orchestrate the simulation of adversarial attacks for this new set of users and teams working specifically on AI safety, and borrow DeepEval’s evals and ecosystem in the process?

Quickstart here: https://www.trydeepteam.com/docs/getting-started#detect-your...

The first thing we did was offer as many attack methods as possible - simple encoding ones like ROT13, leetspeak, to prompt injections, roleplay, and jailbreaking. We then heard folks weren’t happy because the attacks didn’t persist across tests and hence they “lost” their progress every time they tested, and so we added an option to `reuse_simulated_attacks`.

We abstracted everything away to make it as modular as possible - every vulnerability, attack, can be imported in Python as `Bias(type=[“race”])`, `LinearJailbreaking()`, etc. with methods such as `.enhance()` for teams to plug-and-play, build their own test suite, and even to add a few more rounds of attack enhancements to increase the likelihood of breaking your system.

Notably, there are a few limitations. Users might run into compliance errors when attempting to simulate attacks (especially for AzureOpenAI), and so we recommend setting `ignore_errors` to `True` in case that happens. You might also run into bottlenecks where DeepTeam does not cover your custom vulnerability type, and so we shipped a `CustomVulnerability` class as a “catch-all” solution (still in beta).

You might be aware that some packages already exist that do a similar thing, often known as “vulnerability scanning” or “red teaming”. The difference is that DeepTeam is modular, lightweight, and code friendly. Take Nvidia Garak for example, although comprehensive, has so many CLI rules, environments to set up, it is definitely not the easiest to get started, let alone pick the library apart to build your own penetration testing pipeline. In DeepTeam, define a class, wrap it around your own implementations if necessary, and you’re good to go.

We adopted a Apache 2.0 license (for now, and probably in the foreseeable future too), so if you want to get started, `pip install deepteam`, use any LLM for simulation, and you’ll get a full penetration report within 1 minute (assuming you’re running things asynchronously). GitHub: https://github.com/confident-ai/deepteam

Excited to share DeepTeam with everyone here – let us know what you think!

80k people flee as wildfires spread in France and Spain

https://www.theguardian.com/world/2026/jul/24/france-evacuation-cap-ferret-peninsula-wildfire
1•geox•50s ago•0 comments

Justice Department Lawyers Reportedly Afraid to Put Things in Writing

https://newrepublic.com/post/213370/doj-afraid-put-things-writing-minneapolis-cities-church-ice
1•hn_acker•52s ago•0 comments

DuckPGQ – A DuckDB community extension for graph workloads

https://duckpgq.org/
1•rzk•1m ago•0 comments

Show HN: PBasic is a modern BASIC interpreter with a retro vibe

https://apps.apple.com/ca/app/pbasic/id6789459761?mt=12
1•johnrpenner•1m ago•0 comments

Why Am I Left-Handed?

https://www.quantamagazine.org/why-am-i-left-handed-20260713/
1•gmays•1m ago•0 comments

Show HN: Sourceminder.org

https://sourceminder.org/
1•ebcode•3m ago•0 comments

Claude Opus 5

https://www.anthropic.com/claude-opus-5-system-card
3•alvis•3m ago•0 comments

Show HN: 18y/O buidling an AI proposal OS and generator

https://www.propi.pro
1•sahil423•4m ago•0 comments

How to Read the Classics: "Critical Reading" or "Respectful Attention"?

https://goldenthread.substack.com/p/how-to-read-the-classics
1•jger15•4m ago•0 comments

Wrexham AFC and Firefox announce a multi-year, front-of-kit partnership

https://blog.mozilla.org/en/firefox/wrexham-afc-firefox-partnership/
1•alehlopeh•5m ago•0 comments

Hybrid Memory Cube (HMC RAM)

https://en.wikipedia.org/wiki/Hybrid_Memory_Cube
1•peter_d_sherman•5m ago•0 comments

AI forcing Big Tech to spend more than it earns; Wall Street hates it

https://fortune.com/2026/07/23/ai-big-tech-never-spend-more-than-earns-wall-street-hates-it/
1•1vuio0pswjnm7•5m ago•0 comments

Claude Opus 5

https://www.anthropic.com/news/claude-opus-5
8•meetpateltech•6m ago•2 comments

As of JDK 27, Oracle engineers will thus stop maintaining the macOS/x64 port

https://openjdk.org/jeps/541
9•pmg1991•9m ago•3 comments

Metadata in WordPerfect 1994: Ada and WCAG 2.1 Compliance

https://rietta.com/blog/metadata-in-wordperfect-ada-wcag-compliance/
2•speckx•9m ago•0 comments

The Boundaries of Automation: A Theory of Persistent Human Participation

https://arxiv.org/abs/2607.21547
2•NickDouglas•10m ago•1 comments

Andrew Kelley: Don't Take the Black Pill

https://www.youtube.com/watch?v=zLZwpH5lCD4
3•signa11•12m ago•0 comments

The Origins of Modern Mathematics in Russia

https://valeman.medium.com/the-origins-of-modern-mathematics-in-russia-from-peter-the-great-to-th...
3•ibobev•13m ago•0 comments

Online Historical Encyclopaedia of Programming Languages

https://hopl.info/
5•gregsadetsky•14m ago•0 comments

The Resistance Liberal Lawyers Helping Trump Take over the Media

https://www.thebignewsletter.com/p/the-resistance-liberal-lawyers-helping
4•foolswisdom•14m ago•0 comments

Must have tool for agentic workspace and Mac users

https://github.com/rohankc69/clickit
3•rohankc_01•15m ago•0 comments

White House offers its science blueprint: More AI, less life sciences

https://www.statnews.com/2026/07/24/science-new-golden-age-report-draws-mixed-reaction/
2•petethomas•15m ago•0 comments

Jacobian Conjecture Refutation Reveals a Structural Limit of AI Interpretability

https://ctolunchnyc.substack.com/p/the-lost-weekend
3•polynomial•17m ago•0 comments

What Is Entropy, Really?

https://www.wired.com/story/what-is-entropy-really/
2•Brajeshwar•18m ago•0 comments

Cloning Mifare Classic Cards via Proxmark3

https://blog.muffn.io/posts/cloning-mifare-cards-proxmark3/
2•speckx•19m ago•0 comments

Apple won't let me show my app

https://wisedayplanner.com/blog/apple-wont-let-me-show-my-app/
6•codersfocus•20m ago•0 comments

The rise and fall of language diversity through the Holocene

https://www.science.org/doi/10.1126/science.adx4343
5•delichon•20m ago•0 comments

Monday.com lays off hundreds to focus on AI

https://techcrunch.com/2026/07/22/monday-com-lays-off-hundreds-to-focuses-on-ai/
5•taubek•20m ago•0 comments

Ask HN: Is anyone giving out tokens for benchmarking LLMs?

2•emosenkis•23m ago•1 comments

An Exam for Active Observers

https://arxiv.org/abs/2607.16165
2•ripbozo•24m ago•0 comments