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M4.6 Earthquake – 2 km ESE of Berkeley, CA

https://earthquake.usgs.gov/earthquakes/eventpage/ew1758534970/executive
34•brian-armstrong•33m ago•7 comments

You did this with an AI and you do not understand what you're doing here

https://hackerone.com/reports/3340109
217•redbell•2h ago•93 comments

LinkedIn will soon train AI models with data from European users

https://hostvix.com/linkedin-will-soon-train-ai-models-with-data-from-european-users/
21•skilled•1h ago•7 comments

Tell the EU: Don't Break Encryption with "Chat Control"

https://www.mozillafoundation.org/en/campaigns/tell-the-eu-dont-break-encryption-with-chat-control/
58•nickslaughter02•33m ago•6 comments

How I, a beginner developer, read the tutorial you, a developer, wrote for me

https://anniemueller.com/posts/how-i-a-non-developer-read-the-tutorial-you-a-developer-wrote-for-...
375•wonger_•9h ago•192 comments

SGI demos from long ago in the browser via WASM

https://github.com/sgi-demos
43•yankcrime•2h ago•4 comments

Metamaterials, AI, and the Road to Invisibility Cloaks

https://open.substack.com/pub/thepotentialsurface/p/metamaterials-ai-and-the-road-to
9•Annabella_W•1h ago•0 comments

Privacy and Security Risks in the eSIM Ecosystem [pdf]

https://www.usenix.org/system/files/usenixsecurity25-motallebighomi.pdf
169•walterbell•5h ago•89 comments

Show HN: Software Freelancers Contract Template

https://sopimusgeneraattori.ohjelmistofriikit.fi/?lang=en
42•baobabKoodaa•2h ago•9 comments

Biconnected components

https://emi-h.com/articles/bcc.html
6•emih•11h ago•0 comments

Download responsibly

https://blog.geofabrik.de/index.php/2025/09/10/download-responsibly/
227•marklit•5h ago•118 comments

Sj.h: A tiny little JSON parsing library in ~150 lines of C99

https://github.com/rxi/sj.h
412•simonpure•17h ago•204 comments

Show HN: Coding Agents swarming your codebase

https://infrastructureas.ai
6•FreeFrosty•1h ago•0 comments

Some Republicans Warn of Government Overreach on Free Speech

https://www.wsj.com/politics/policy/some-republicans-warn-of-government-overreach-on-free-speech-...
22•doener•37m ago•2 comments

A Generalized Algebraic Theory of Directed Equality

https://jacobneu.phd/
34•matt_d•3d ago•8 comments

Why is Venus hell and Earth an Eden?

https://www.quantamagazine.org/why-is-venus-hell-and-earth-an-eden-20250915/
136•pseudolus•11h ago•206 comments

Simulating a Machine from the 80s

https://rmazur.io/blog/fahivets.html
47•roman-mazur•3d ago•5 comments

The death rays that guard life

https://worksinprogress.co/issue/the-death-rays-that-guard-life/
7•ortegaygasset•3d ago•3 comments

We Politely Insist: Your LLM Must Learn the Persian Art of Taarof

https://arxiv.org/abs/2509.01035
45•chosenbeard•10h ago•9 comments

Lightweight, highly accurate line and paragraph detection

https://arxiv.org/abs/2203.09638
120•colonCapitalDee•13h ago•19 comments

40k-Year-Old Symbols in Caves Worldwide May Be the Earliest Written Language

https://www.openculture.com/2025/09/40000-year-old-symbols-found-in-caves-worldwide-may-be-the-ea...
154•mdp2021•4d ago•93 comments

How can I influence others without manipulating them?

https://andiroberts.com/leadership-questions/how-to-influence-others-without-manipulating
129•kiyanwang•12h ago•122 comments

DSM Disorders Disappear in Statistical Clustering of Psychiatric Symptoms (2024)

https://www.psychiatrymargins.com/p/traditional-dsm-disorders-dissolve?r=2wyot6&triedRedirect=true
134•rendx•8h ago•77 comments

DXGI debugging: Microsoft put me on a list

https://slugcat.systems/post/25-09-21-dxgi-debugging-microsoft-put-me-on-a-list/
265•todsacerdoti•19h ago•76 comments

Nvmath-Python: Nvidia Math Libraries for the Python Ecosystem

https://github.com/NVIDIA/nvmath-python
52•gballan•3d ago•1 comments

Why your outdoorsy friend suddenly has a gummy bear power bank

https://www.theverge.com/tech/781387/backpacking-ultralight-haribo-power-bank
229•arnon•22h ago•271 comments

Teach Kids Electronics Using Dough: Light Up Caterpillar Project

https://newsletter.infiniteretry.com/dough-circuits-led-caterpillar/
17•ekuck•3d ago•2 comments

I uncovered an ACPI bug in my Dell Inspiron 5567. It was plaguing me for 8 years

https://triangulatedexistence.mataroa.blog/blog/i-uncovered-an-acpi-bug-in-my-dell-inspiron-5667-...
69•thunderbong•3d ago•11 comments

Show HN: Tips to stay safe from NPM supply chain attacks

https://github.com/bodadotsh/npm-security-best-practices
68•bodash•13h ago•41 comments

Calculator Forensics (2002)

https://www.rskey.org/~mwsebastian/miscprj/results.htm
83•ColinWright•3d ago•37 comments
Open in hackernews

Australian telco cut off emergency calls, firewall upgrade linked to 3 deaths

https://www.theregister.com/2025/09/21/optus_emergency_call_incident/
42•croes•2h ago

Comments

untrimmed•1h ago
So let me get this straight. After a data breach and a massive outage, their first move is to hint that a few employees are to blame for this tragedy? It's a classic playbook move to find a scapegoat.
scorpioxy•1h ago
Yes, a similar thing happened for the major outage prior to this. The same thing is happening for the many data breaches that are occurring. It is never the decision maker's fault, always some poor employee that doesn't get a chance to present their case.

I was in similar meetings where such decisions were made and possible consequences were brushed off with "we just need to get this done as quickly as possible".

This won't stop until there are serious consequences for the businesses.

000ooo000•1h ago
Apparently one was an 8-week old. Heads need to roll here but I have no faith in anything meaningful coming of this.
madeofpalk•1h ago
What would rolling heads actually achieve here? IMHO - there “just” needs to be stronger regulation that ensures carriers plan and account for this.
tledakis•1h ago
The regulation is already there, mandating the telco routes 000 calls. They failed and as a result people died.

What the parent poster probably means by rolling heads is, this should not just be a fine to the telco but literally people going to jail for the criminal negligence.

How else is there going to be change? A money fine is just an operational expense that can be offset and "part of business if someone dies because of bad testing".

vermilingua•55m ago
Optus has had three catastrophic incidents in as many years, there is a clear failure of management and rolling those heads would make room for people not keen on repeating history.
re-thc•19m ago
> there is a clear failure of management and rolling those heads

It's more a structural issue.

Whilst it is a large chunk of assets, there's lots of competition so not really exciting. AUD has weakened, which makes it worth less by default.

So if you were its owner (in Singapore) what would you do? You can't really sell it (not worth it), you can't really invest in it but you don't want to fold it.

cjs_ac•1h ago
This is just another major crisis for Optus. It no longer has the technical capacity to operate a telecommunications network and its managerial class either doesn't know or doesn't care. As a corporation, Optus no longer serves any purpose and ought to be wound up.
re-thc•1h ago
> and its managerial class either doesn't know or doesn't care

They never had a say. Their parent Singtel were always effectively calling the shots.

jstanley•1h ago
I've done some work for a telco and I was surprised to find that emergency calls are routed over completely different infrastructure to ordinary calls, and it is not routinely tested.

There wasn't an automated way to test it, and most people never thought at all about the emergency call routing because it was such a low number of calls (I think single digits ever).

It's easy to see how you could accidentally break emergency calling and not notice.

6LLvveMx2koXfwn•1h ago
In the UK, based on the latest data, we get 35 million 999/112 calls per annum, roughly 96k per day.
closewith•1h ago
But there's about 50,000 mobile phone towers, so still single digits per site.
NewJazz•1h ago
Would be wonderful if we could crowd source regular testing. Could help catch device specific issues like those on the Pikcel line of phones.
cmullaparthi•1h ago
Not sure which telco that is - but in the UK, impact on emergency calls is taken into account for every change that happens. This was non-negotiable in the 15 years I spent at a telco.
scorpioxy•1h ago
A similar thing happened around 2 years ago that, from memory, affected the trains and 000(the Aussie 911 equivalent).
anthonyeden•1h ago
Friendly reminder to anyone who installs or maintains PABXes: test your emergency calling whenever you make change.

In Australia, you can call 000, say you’re testing a phone system, read out the Caller ID you’re supposed to be calling from, and they’ll confirm the number and location. This happens with the 000 operator, not the police/fire/ambulance operator you get transferred to in a real emergency.

Other countries may have different testing procedures.

hdgvhicv•57m ago
In the U.K. you should email 999testcalls@bt.com first, although strictly speaking for a one off test (typically by an end user rather than a professional) it’s ok to just call and explain.

https://www.ofcom.org.uk/phones-and-broadband/telecoms-infra...

femto•1h ago
The elephant in the room is that Australian landlines stop working whenever there is an NBN/Internet outage, or the power goes off. No 000 for you.
keyle•1h ago
That's different, it's VOIP and it's part of your contract. Arrangements can be made to go around this.

But what happened here was, 000 calls that should have worked didn't, resulting in 4 linked death so far.

Having worked in that field a few years ago, I know that any minute in which 000 is inaccessible is a grave disaster. This was a colossal cluster f: 14 hours!

kijjure•39m ago
That's only one side of it. Think about how much money they saved by offshoring and having """skilled""" migrants from India handling our technical infrastructure now.