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Show HN: BrandRetina – screenshot similarity API for spear-phish detection

https://brandretina.ai/
3•malik_naji•2h ago
Hi HN folks, I’m building BrandRetina (brandretina.ai), an API-first service to catch high-fidelity spear-phishing that looks like your real internal portals..

Most scanners are great at "bad code" (malware/reputation), but lots of modern phishing is just a clean site that visually impersonates Okta/SSO/Workday/customer portals. SOC teams often end up doing the manual step: open urlscan screenshot -> eyeball it -> decide.

What BrandRetina does:

- You onboard a "Golden Registry" (verified screenshots of your real portals) - When a suspicious link comes in, your SOAR detonates it (e.g., urlscan.io) and gets a screenshot UUID - BrandRetina compares the screenshot against the Golden Registry (visual embeddings / similarity) and returns:

1) verdict (CLEAN/SUSPICIOUS/MALICIOUS) 2) similarity score 3) target portal + evidence flags (logo/layout/color/form signals)

Why it’s useful:

- Flags lookalikes even when the HTML/code is completely different - Removes the repetitive screenshot-review step - Fits existing workflows (SOAR/SIEM) instead of replacing them

I'd love feedback from SOC/IR/SecOps folks:

- Are screenshot-based verdicts something you’d trust in an automated playbook? - What evidence signals would make this actionable for you? - What sources besides urlscan would you want supported?

Docs: https://brandretina.ai/docs API base: https://api.brandretina.ai

Show HN: AI Accel,Tension-based pruning framework(40% sparsity, 1.5-2x speedups)

https://github.com/wwes4/AI_Accel_1.5x
1•wwes369•40s ago•0 comments

Fisher Information in Kinetic Theory

https://arxiv.org/abs/2501.00925
1•tzury•22m ago•0 comments

Writing an NES Emulator in Haskell

https://arthi-chaud.github.io/posts/funes/
2•todsacerdoti•26m ago•0 comments

Flutter and React Native App Development in Coimbatore – Cross-Platform Pros

https://jeevantech.in/services/mobile-application-development-services/
1•Jeevandigital•27m ago•1 comments

The story of reinforcement-learning-with-verifiable-reward-rlvr

1•wsmhy2011•34m ago•0 comments

Demystifying Determinism in Durable Execution

https://jack-vanlightly.com/blog/2025/11/24/demystifying-determinism-in-durable-execution
1•PaulHoule•35m ago•0 comments

Tell HN: Claude rate limits are 2x higher through 12/31

1•keepamovin•36m ago•1 comments

Physics of Covid-19 Transmission (2020)

https://ocw.mit.edu/courses/res-10-s95-physics-of-covid-19-transmission-fall-2020/video_galleries...
2•nill0•36m ago•0 comments

Scale Architecture for Deep Learning [pdf]

https://cdn.sanity.io/files/e4qjo92p/production/2d7fa58e3b820715664bcf42097e86c05070c161.pdf
1•mahirsaid•45m ago•1 comments

The Future of Software Engineering: Efficiency, Learning Velocity, Small Teams

https://blog.rastrian.dev/post/the-future-of-software-engineering-efficiency-learning-velocity-sm...
1•rastrian•59m ago•0 comments

China is building most powerful hydropower system deep in the Himalayas

https://www.cnn.com/2025/12/17/china/china-largest-hydropower-dam-intl-hnk-dst
2•thunderbong•1h ago•0 comments

Rob Pike Goes Nuclear over GenAI

https://imgur.com/nUJCI3o
131•signa11•1h ago•46 comments

How Email Works

https://sushantdhiman.substack.com/p/how-email-actually-works-ep-1-behind
1•signa11•1h ago•0 comments

Going boldly into the COSMIC desktop environment

https://lwn.net/Articles/1050268/
3•signa11•1h ago•0 comments

Multiscale Aperture Synthesis Imager

https://www.nature.com/articles/s41467-025-65661-8
1•wisty•1h ago•0 comments

Trump Administration to Overhaul Lottery System for H-1B Visas

https://www.ft.com/content/2e50f86f-2a40-4e5c-9470-7978b979c081
2•dsmark•1h ago•2 comments

The Optimization Trap: Why Doing Everything Right Feels Wrong

https://www.slideshare.net/slideshow/the-optimization-trap-why-doing-everything-right-feels-wrong...
3•realitydrift•1h ago•0 comments

Apple's App Course Runs $20k a Student. Is It Worth It?

https://www.wired.com/story/apple-app-making-course-michigan-state-university/
1•gpi•1h ago•0 comments

Encryption is not enough: Shifting the economics of surveillance

https://drive.proton.me/urls/ZTM6NE0D70#5o2bMEjLUMXx
2•justinjeff•1h ago•2 comments

Google to allow Gmail users to change their primary email address

https://www.neowin.net/news/google-to-finally-allow-gmail-users-to-change-their-primary-email-add...
1•mikece•1h ago•0 comments

Show HN: Debug Buddy – A Chrome extension for console errors using Claude

https://github.com/mechramc/debug-buddy-claude
1•mechramc•1h ago•1 comments

The Compiler Is Your Best Friend, Stop Lying to It

https://blog.daniel-beskin.com/2025-12-22-the-compiler-is-your-best-friend-stop-lying-to-it
1•thunderbong•1h ago•0 comments

I made a tool to remove ChatGPT watermarks

https://www.gptcleanup.com/
1•emmanuelasika•1h ago•1 comments

Judge Blocks Detention of British Researcher Who Scrutinizes Online Hate

https://www.nytimes.com/2025/12/25/us/politics/imran-ahmed-judge-order.html
4•perihelions•1h ago•2 comments

Snowfall in Basic

https://www.goto10retro.com/p/snowfall-in-basic
2•ibobev•1h ago•0 comments

Easily Dealing with Any-Dimensional Planes

https://gpfault.net/posts/hyperplanes.html
1•ibobev•1h ago•0 comments

Time in C++: Inter-Clock Conversions, Epochs, and Durations

https://www.sandordargo.com/blog/2025/12/24/clocks-part-5-conversions
2•ibobev•1h ago•0 comments

Apple hit with $115M fine for "burdensome" App Store privacy policy

https://arstechnica.com/tech-policy/2025/12/apple-hit-with-115m-for-extremely-burdensome-app-stor...
2•yellow_postit•1h ago•0 comments

Koine

https://github.com/pattern-zones-co/koine
1•handfuloflight•1h ago•0 comments

Gone, Numb. // An essay as I explore justice.gov records

https://operand.online/chronicle/numb
3•c4lliope•1h ago•0 comments