S3Broker – CF Worker library to protect your S3 storage from ransomware

Hacker News

Hi HN Community! I use S3 providers (e.g. Cloudflare R2) along with software like rclone and Mountain Duck for my personal media storage. Some S3 providers do not include built-in versioning / deletion protection. I find my data vulnerable to accidental deletion or ransomware attacks in case my device is compromised. To tackle this issue, I built a "middleware" on Cloudflare Workers to proxy S3 requests with configurable guardrail policies. The client uses an alternative secret key to connect to this middleware, and the middleware would reject with 403 if it determines the S3 request is dangerous. For example, I could configure that all files in `/important/.*` path older than 1 week could not be deleted or overwritten. Doing so, I could restrict ransomware's abilities on the API level. The code has been packed into a library and published to npm to be used on CF workers. This is an active work in progress, and I have already deployed it for my personal use (it works). Let me know what you think!

Visit product View on Hacker NewsDec 31, 2025

Share card

Actual performance

1points

Did not reach leaderboard

Launch Intel predictions

Analyze your own launch →

Product HuntOn track for Day 1 leaderboard · Strong signals: code · Missing: mac, agents, macos

86%86% predicted probability of success on Product Hunt, based on ML models trained on real launch data.

best fitHighest predicted score across all platforms for this description.

Indie HackersFits the IH revenue-focused audience · Missing: supports, reddit linkedin, podcasting

72%72% predicted probability of success on Indie Hackers, based on ML models trained on real launch data.

Hacker NewsMay not resonate with HN audience · Strong signals: ide, io · Missing: https docs, excited, just released

50%50% predicted probability of success on Hacker News, based on ML models trained on real launch data.

nativeThis product was originally launched on this platform.

TrustMRRLess likely to generate early MRR · Strong signals: personal · Missing: mobile apps, ios, entrepreneurs

43%43% predicted probability of success on TrustMRR, based on ML models trained on real launch data.

AppSumoMay struggle as an AppSumo deal · Missing: plus, platform, intuitive

33%33% predicted probability of success on AppSumo, based on ML models trained on real launch data.

Acquire.comPre-revenue stage for this audience · Strong signals: active · Missing: arr, mrr, revenue

14%14% predicted probability of success on Acquire.com, based on ML models trained on real launch data.

BetaListMay not resonate with beta-testers · Missing: web3, chat, crypto

1%1% predicted probability of success on BetaList, based on ML models trained on real launch data.

Correct prediction on native model

Similar products

S3 Storage Addon for Atropim47%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

S3 Storage Addon for Atropim

Hacker News1

cunoFS – mount S3/AZ/GCP storage *without* FUSE, 60x faster than s3fs67%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

cunoFS – mount S3/AZ/GCP storage *without* FUSE, 60x faster than s3fs

Hacker News19

SuperS3t, a Vert.x-ready, asynchronous S3 library51%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

SuperS3t, a Vert.x-ready, asynchronous S3 library

Hacker News2

Kev – S3 and Redis as Datastores (with Redis Indexing)60%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Kev – S3 and Redis as Datastores (with Redis Indexing)

Hacker News8

Cache for S354%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Cache for S3

Hacker News8

WeSQL – Agile MySQL with S3-Based Storage43%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

WeSQL – Agile MySQL with S3-Based Storage

Hacker News4

WeSQL44%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Agile MySQL with S3-Based Storage

Product Hunt+9

Airbox: S3-Compatible Storage for the Masses. Ready in One Click.51%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Airbox: S3-Compatible Storage for the Masses. Ready in One Click.

Hacker News23

Minio – S3 Compatible Object Storage51%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Minio – S3 Compatible Object Storage

Hacker News49

Uploadjoy30%Launch Intel prediction score: how likely this product is to succeed on its source platform, based on its name, tagline, and description.

Object storage SaaS alternative to S3.

Indie Hackers1analytics

Browse all products Analyze your launch