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redactsure

Re: on Wednesday September 17, 2025 @06:05PM (#45281947)
I have a new browser security method. Inside this link you'll have access to a virtual browser environment. In this environment you will have the ability to control and access a plain text private bitcoin key worth 20$. There is only a single key, first one to take it ends the challenge for all. -> Demo Signup: https://app.redactsure.com -> Bitcoin Checker: https://redactsure.com/bitcoinchallenge

Note: - No mobile, keyboard required - Requires you to verify an email - Any bug is eligible for a prize if it's something I haven't seen before, just tell me.

Some people were asking about implementation I'll provide a few details. - A server hosted browser - I manipulate what you are seeing on the webpage in real time - While I don't change the underlying webpage I do manipulate your actions to the webpage - A transformer model runs in real time along side you (tries to find all sensitive words you see)

Overall the system's goals are to allow you to perform work without ever seeing the data. It's in a early prototype stage and I expect a large numbers of edge cases just from the nature of the problem. The bitcoin is a proxy to the real goal which is protecting real PII in remote work settings.

It would be nice if you tell me the bug. I would like to post how you broke it.

Thanks! This is a good one. Looks like their dynamic content grabs it and places it there. It's definitely finicky.

It's gonna be a fun debug session. Timing/race conditions are always fun to debug!

I have a new browser security method. Inside this link you'll have access to a virtual browser environment. In this environment you will have the ability to control and access a plain text private bitcoin key worth 20$. There is only a single key, first one to take it ends the challenge for all.

-> Demo Signup: https://app.redactsure.com -> Bitcoin Checker: https://redactsure.com/bitcoinchallenge -> Previous Winners: https://redactsure.com/leaderboard

Note: - No mobile, keyboard required - Requires you to verify an email - Any bug is eligible for a prize if it's something I haven't seen before, just tell me.

Some people were asking about implementation I'll provide a few details. - A server hosted browser - I manipulate what you are seeing on the webpage in real time - While I don't change the underlying webpage I do manipulate your actions to the webpage - A transformer model runs in real time along side you (tries to find all sensitive words you see)

Overall the system's goals are to allow you to perform work without ever seeing the data. It's in a early prototype stage and I expect a large numbers of edge cases just from the nature of the problem. The bitcoin is a proxy to the real goal which is protecting real PII in remote work settings.

It would be nice if you tell me the bug. I would like to post how you broke it.

Ahhh, this is fun. My own security policy working against me! back to top of the leaderboard for you!
Challenge is back up if anyone is still interested in a try: https://redactsure.com/bitcoinchallenge/
Up...again
bet you couldn't do it again. It's back up. Patch is a bit hacky but should work plus I blocked the signup page.

Real patch is a chromium update (like a week of work) so imma avoid that until needed.

that was brutal! I knew you were holding out something. Oh man this is a brutal bug as well. That's an OS popup! That's gonna take me some time.

Actually even worse it's neither an OS level or dom level item custom chrome rendering layer.

back up if you want another chance
back up if you want another go -> again
Back up if you want another go.
I have a new browser security method. Inside this link you'll have access to a virtual browser environment. In this environment you will have the ability to control and access a plain text private bitcoin key worth 20$. There is only a single key, first one to take it ends the challenge for all.

Demo Signup: https://app.redactsure.com/ Bitcoin Checker: https://redactsure.com/bitcoinchallenge/

Limitations: - 15mins per session (why? GPU per session, limited spots) - US only is preferred (why? latency, I am streaming video to you) - No mobile, keyboard required - Requires you to verify an email

Some people were asking about implementation I'll provide a few details. - A server hosted browser - I manipulate what you are seeing on the webpage in real time - While I don't change the underlying webpage I do manipulate your actions to the webpage - A full transformer model runs in real time along side you (tries to find all sensitive words you see)

Overall the systems goals are to allow you to perform work without ever seeing the data. It's in a early prototype stage and I expect a large numbers of edge cases just from the nature of the problem. The bitcoin is a proxy to the real goal which is protecting real PII in remote work settings.

Other notes: - It would be nice if you tell me the bug. I would like to post how you broke it. - I'll post updates as well as info on bugs sessions here: https://x.com/CharlesCurt2

What did you try to do? If you had the full key it should be relatively simple. Maybe I should post some instructions on claiming the key?
Nice! Thanks again. You're definitely making me fix all my laziness for sure. I honestly hopped that bug would only expose the tail ends but the select and drag is definitely not something I've tried before.
It is. You may have been just a little too late. It was claimed.
I have a new browser security method. Inside this link you'll have access to a virtual browser environment. In this environment you will have the ability to control and access a plain text private bitcoin key worth 20$. There is only a single key, first one to take it ends the challenge for all.

Demo Signup: https://app.redactsure.com/ Bitcoin Checker: https://redactsure.com/bitcoinchallenge/

Limitations: - 15mins per session (why? GPU per session, limited spots) - US only is preferred (why? latency, I am streaming video to you) - No mobile, keyboard required - Requires you to verify an email

Some people were asking about implementation I'll provide a few details. - A server hosted browser - I manipulate what you are seeing on the webpage in real time - While I don't change the underlying webpage I do manipulate your actions to the webpage - A full transformer model runs in real time along side you (tries to find all sensitive words you see)

Overall the systems goals are to allow you to perform work without ever seeing the data. It's in a early prototype stage and I expect a large numbers of edge cases just from the nature of the problem. The bitcoin is a proxy to the real goal which is protecting real PII in remote work settings.

Other notes: - It would be nice if you tell me the bug. I would like to post how you broke it. - I'll post updates as well as info on bugs sessions here: https://x.com/CharlesCurt2

Challenge is back up if anyone is still interested in a try:

https://redactsure.com/bitcoinchallenge/

It is not on the client. Challenge is back up please give it a try.

https://redactsure.com/bitcoinchallenge/

bug was literally 1 line of code.

I might be back up today if you want another shot.

I had no idea evil tester website had so many tools throughout it!

yup if I can fix the problem today I'll launch tomorrow same thing.
lol that's dumb of me. I figured one of the websites would have a vulnerability like that. Images should be hidden but clearly not!

Anyways. Thanks for the feedback! I'll be back when I add a patch.

I have to to host a gpu node per session so 15min is to reduce cost and allow more people to try it.

It's not traditional security testing. I want you to break the hiding algorithm which requires no security knowledge other than copy paste and typing.

The private key is in plain text on the instance you can copy and paste it or delete it anywhere you like.

Show HN: Bitcoin Challenge. Try to steal a plain text private key you can use

https://app.redactsure.com/

Hi HN, I'm releasing my round one public demo of a new browser security system I've been developing.There's a real Bitcoin private key (worth $20) in plaintext at app.redactsure.com. You can copy it, paste it, delete it, move it around - full control. But you can't see the actual characters or extract them.The challenge: Break the protection and take the Bitcoin. First person wins, challenge...

( Read More... | 13 comments | 6 points | on HN )
Re:Ask HN: What Are You Working On? (June 2025) on Monday June 30, 2025 @05:39PM (#44428196)
Work with sensitive data without seeing it.

We're building Redactsure.com

A novel technology whose goal is to separate data from interactions entirely. We are building a custom OS whose first goal is to detect, hide, and then use sensitive data throughout any web interface.

Building a new browser rendering layer with real time transformer inferencing is hard but it's been an amazing tech to work on. Long term we think this technology will change the way all remote work is done at a fundamental level.

Re:Ask HN: Who is hiring? (April 2025) on Wednesday April 02, 2025 @05:54PM (#43562111)
Redactsure | Founding Software Engineer | Menlo Park, CA | In-Person

Redactsure is a startup pioneering Anonymity-as-a-Service, establishing a new technology category analogous to homomorphic encryption, but specifically designed for general-purpose user interfaces. By acting as middleware that anonymizes all sensitive interactions at the UI level, Redactsure enables humans and AI agents to safely perform tasks without ever exposing sensitive data. If you're interested in building a technology never seen before, this is it.

If you have experience with AI (training models), browsers/automation, or software security, I'd love to chat!

Find me on LinkedIn or reach out via email through the website: Redactsure.com