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Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
101•theblazehen•2d ago•22 comments

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
654•klaussilveira•13h ago•189 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
944•xnx•19h ago•549 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
119•matheusalmeida•2d ago•29 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
38•helloplanets•4d ago•38 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
48•videotopia•4d ago•1 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
228•isitcontent•14h ago•25 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
14•kaonwarb•3d ago•17 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
219•dmpetrov•14h ago•113 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
328•vecti•16h ago•143 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
378•ostacke•19h ago•94 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
487•todsacerdoti•21h ago•241 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
359•aktau•20h ago•181 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
286•eljojo•16h ago•167 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
409•lstoll•20h ago•276 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
21•jesperordrup•4h ago•12 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
87•quibono•4d ago•21 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
59•kmm•5d ago•4 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
4•speckx•3d ago•2 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
31•romes•4d ago•3 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
251•i5heu•16h ago•194 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
15•bikenaga•3d ago•3 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
56•gfortaine•11h ago•23 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1062•cdrnsf•23h ago•444 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
144•SerCe•9h ago•133 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
180•limoce•3d ago•97 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
287•surprisetalk•3d ago•41 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
147•vmatsiiako•18h ago•67 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
72•phreda4•13h ago•14 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
29•gmays•9h ago•12 comments
Open in hackernews

Show HN: Entropy – Sharing screen is scary in SaaS age

https://entropysec.io/
22•RazCo•8mo ago
Sharing screen is really scary today with all PIIs and secrets sprawling around your screen, so I built Entropy, a small Chrome extension that spots API keys, tokens, emails, and throws a blur overlay on them in real time.

The goal is to make screen-sharing feel safe again without adding steps to a demo.

Everything runs locally—regex + entropy heuristics compiled to WASM—and the extra CPU cost averages ~1 ms per mutation on my M1.

Custom rules can be added with a JSON file for teams that have proprietary token formats.

visit https://entropysec.io

Feedback please <3

Comments

pinkmuffinere•8mo ago
Congrats! Launching is hard. Feedback:

- I can't tell what this is until I scroll "below the fold" (ie, below the first visible screen). I think your tagline just needs to be clearer. Even your first sentence in the post here could be a decent description ("Entropy, a small Chrome extension that spots API keys, tokens, emails, and throws a blur overlay on them in real time")

- I'm not very comp-sec minded. I've never in my life worried about leaking API keys, tokens, email addresses, etc via screen share. I have worried about leaking bookmarks, sensitive email drafts, slack messages, etc. But I also don't think I care enough to pay for something that blocks those. Hopefully there are people that do care enough to pay

- An idea for a possible pivot: Ad agencies sometimes want to show how much money or traffic they bring in for clients. Made up data isn't convincing to close a sale, but real pages can have sensitive data like company names, logos, ad spend, etc. With a slight pivot, you might be able to provide them something to obscure that info. I only have second-hand knowledge of this problem, so you'd need to verify that they care enough about this -- don't take my word for it.

mattbessey•8mo ago
I would recommend doing more than gaussian blurring. Blurring makes it harder but not impossible to recover, especially if you know the exact font and font size in an image (which is easily recovered when the attacker can visit the website to work it out!).
pockybum522•8mo ago
https://youtu.be/acKYYwcxpGk here's a citation for that being possible, in case anyone's interested. Also has some of the methods posted on github from what I remember.
pushcx•8mo ago
Yep: https://github.com/bishopfox/unredacter
randomtoast•8mo ago
We would need actual black bars.
kevincox•8mo ago
Or if you want it to look "authentic" replaced it with blurred random text.

But personally I like solid bars as it makes it obvious what is happening and that it is secure.

sureglymop•8mo ago
A very cool idea but I think instead of blurring, you should just put a black bar over the recognized secrets. I mean think about it: you're going all the way when it comes to detection but only halfway when it comes to actually obscuring.
cheschire•8mo ago
Or make it customizable! Maybe I want to cover my secrets with daisies. Or fig leaves.
phoronixrly•8mo ago
Soo... No source? Requires access to 'Read and change all your data on all websites'? Pinky-promises not to send data to a server?

On top of that it uses blur to hide secrets when it has been proven that blurring leaks enough information for the obscured data to be reconstructed.

On top of that it's a $4/mo subscription service for what in your words amounts to regex + entropy heuristics + some enshittification (you're not allowed to have custom regex unless you pay subscription)...

Xss3•8mo ago
What, you don't trust strangers with all your web browsers data? Don't be so paranoid.
owebmaster•8mo ago
Now developers have to give their source code for free and can also not monetize subscription. Is it some kind of modern slavery?
phoronixrly•8mo ago
No source - no pay. Even if source, in case the licensing scheme is subscription-based, there better be some service rendered that has recurring expenses, otherwise -- still no pay.
owebmaster•8mo ago
yes source - still no pay. What is the benefit in satisfying your demands? Code it yourself and make it open source.
castillar76•8mo ago
The only place I'm insistent about source-code is things like this that need access to a ton of my data at all times. An app that only has access to the data I choose to share with it, I'm more willing to give-and-take on the show-me-the-code front.

As far as subscriptions go, a lot of devs have moved to a subscription-train model, which I really like: you pay for the subscription (which funds development and pays for support), but at any time you can _stop_ paying the subscription cost and keep the version you're currently running without further updates. That's a good trade-off to me, since I can choose to end my subscription without it becoming a catastrophic migration event that has to be carefully planned and executed fully before opting to stop paying.

mouse_•8mo ago
Dude, just install the closed source screen reader that tries to find PII/credit cards/social security numbers on your computer. It's for Cyber Security!
dinfinity•8mo ago
Agreed. Flagged the article. Borderline malware advertisement.
pinkmuffinere•8mo ago
They built a new thing and shared it. Hn is news for “hackers”, and sharing early products like this is one of the intended use cases. Sure it lacks polish, but flagging seems extreme
phoronixrly•8mo ago
I mean, drumming up a chrome extension on HN to get a userbase, then abusing it or selling it off to be abused shouldn't be the sort of entrepreneurial/hacking mindset HN appreciates.
pinkmuffinere•8mo ago
> abusing it or selling it off

I got no indication that the author was planning to do either of these things

phoronixrly•8mo ago
How about all the red flags of my initial comment?
keepamovin•8mo ago
This is a great example of a product that doesn't really need to exist in a super completed state but that "gracefully degrades" to the customer tiers that come in. Like technically the features in the tiers are not complex or difficult (not disparagement to the effort and design, instead respect) - but the natural "peak solution" (using LLM to detect secrets) is advertised and achievable.

Well done!

stephantul•8mo ago
“Colleagues”, the first prompt on the main page, is misspelled as “collegues”
nssnsjsjsjs•8mo ago
Nice line of defence! Ofc. people should avoid a situation where a secret on screen is worth something. Use MFA, VPN, key vault, JWT, OTP etc. etc.
CommenterPerson•8mo ago
A Google Chrome extension to hide your secrets? Wouldn't that be self contradicting?
ttoinou•8mo ago
Feature idea for another product based on the exact same stack tech : replace private information that are less private than secret keys but still not for public release (filepath files folders names in file system, user accounts names etc.) so that developer can easily make product screen recording / screenshot to showcase their product to the public. Then replace those strings by dummy strings generated by AI. You could sell it for more. I need this.
ajb•8mo ago
In security, whitelisting is preferable to blacklisting. However given that people can already whitelist by only sharing one window (which is what I, and I guess most security conscious people, always do) I'm not sure there's a business here.
castillar76•8mo ago
I was puzzled by that, too: I'm always mystified when people share their entire screen on a Zoom call instead of just the one window they need to show me. Zoom even makes it easy to change out what you're sharing (add / subtract) any time.

Having seen a giant work meltdown stemming from a colleague's Slack DM accidentally broadcast over a Zoom call, I'm always paranoid about it.

bitbasher•8mo ago
Sharing secrets is scary. Instead we share your screen and secrets to third party LLM providers!