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Updated: 13 min 9 sec ago

Tell HN: Meta's AI support feature allows Instagram accounts to be stolen

Sun, 05/31/2026 - 6:11pm

If the AI support option is enabled for your Instagram account (it appears to be A/B tested for only a percentage of accounts), anyone can hijack it with little effort. Simply get on a proxy or VPN close to the account's region, then ask the agent to send a code to an arbitrary email address. Once you receive the code, pass it forward to the agent, and it'll provide you with a password reset link which you can then use to sign into the account.

Posting here for any Meta employees who may be reading. This flaw has been around for at least a few days and has been used to hijack over 100 high-value Instagram accounts. The correct patch would be to disable the AI support feature entirely for the time being until this is sorted and revert accounts and usernames that have been hijacked over the last few days. This is a pretty important flaw and it's currently being exploited in blackhat circles. The steps above are public knowledge in these circles and can be found trivially on Telegram.

Comments URL: https://news.ycombinator.com/item?id=48350239

Points: 1

# Comments: 0

Categories: Hacker News

Mapa.ua – Ukraine War Map

Sun, 05/31/2026 - 6:10pm

Article URL: https://mapa.ua/

Comments URL: https://news.ycombinator.com/item?id=48350228

Points: 1

# Comments: 0

Categories: Hacker News

Ask HN: Do you use Cloudflare bot protection? If so, why do you use it?

Sun, 05/31/2026 - 5:51pm

Ask HN: Do you use Cloudflare bot protection? If so, why do you use it? Did you stress test your servers and determine that you need bot blocking? Have you considered alternatives like anubis?

Comments URL: https://news.ycombinator.com/item?id=48350107

Points: 1

# Comments: 0

Categories: Hacker News

JavaScript Crossword

Sun, 05/31/2026 - 5:46pm

Article URL: https://lyra.horse/fun/jscrossword/

Comments URL: https://news.ycombinator.com/item?id=48350078

Points: 3

# Comments: 0

Categories: Hacker News

Show HN: Pictolab (online HDR image editor)

Sun, 05/31/2026 - 5:45pm

Source code: http://github.com/anchpop/pictolab

I love HDR, but until recently dynamic HDR content was hard to render in the browser. But now, with browsers shipping support for WebGPU and canvases with extended color spaces, it's actually feasible.

So what I wanted to was make an image editor capable of doing the simple edits I often need to do, but with full HDR support, which is rare in browser editors. Turning up the brightness on an HDR-capable monitor is a great way to see what your monitor can do :P

I tried to go overboard in every way I could. So brightness/saturation/hue adjustments use the okLCH color space, and there's an option to do a "content-aware resize" with seam carving, which is fast because it's parallelized using Sam Westrick's triangle-blocking algorithm [0].

Also, the site supports importing HEIC photos as taken with an iPhone, which is surprisingly hard to do correctly. Libraries like libheic don't fully support the format used by iPhones, so if used naively the HDR colors come out wrong. I'm working on a blog post about this, but the short version is that you have to use ISO 21496-1 gain map composition (which isn't even what apple documents). I'm pretty sure that pictolab is the *only* website that allows you to convert HEIC to JPEG or AVIF without messing up the HDR.

There is also a local background-removal model. Enjoy!

[0]: https://shwestrick.github.io/2020/07/29/seam-carve.html

Comments URL: https://news.ycombinator.com/item?id=48350064

Points: 2

# Comments: 1

Categories: Hacker News

Show HN: Grenzwer – Medical Viewer

Sun, 05/31/2026 - 5:11pm

I shared an earlier version of this project some time ago. Since then, I have implemented quite a few changes and improvements.

The project is a cross-platform medical viewer written in C++. It also builds for the web via Emscripten/WebAssembly, so the same codebase can run both natively and in the browser.

Some of the main updates since the previous version: - Added an MPR mode. Previously, the viewer only had volume rendering; it can now display sagittal, coronal, and axial planes. - Added navigation tools for MPR views, including zoom, pan, window/center adjustment, HU probe, coordinate display, and crosshair mode. - Added measurement tools for distances and angles. - Added presets for the transfer function. - Integrated a progressive irradiance cache for the 3D rendering mode, which significantly improves performance on lower-end devices. - Added new CT and MRI datasets to the website, so it is easier to try the viewer without preparing your own data.

I am currently working on integrating a DICOM loader, so users will be able to load their own DICOM studies directly.

What do you think about the direction of the project?

Comments URL: https://news.ycombinator.com/item?id=48349798

Points: 1

# Comments: 0

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