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Railway introduced undoable deletes for database volumes

https://railway.com/changelog/2026-05-01-undoable-deletes
1•appveyor•29s ago•1 comments

No woman in England or Wales can be prosecuted for an abortion any more

https://www.cosmopolitan.com/uk/reports/a71163004/england-wales-decriminalise-abortion/
2•embedding-shape•2m ago•0 comments

Asdas

1•milindsoni201•4m ago•0 comments

Update concerning DDoS attack on Canonical and Ubuntu

https://discourse.ubuntu.com/t/update-concerning-ddos-attack-on-canonical-and-ubuntu/81482
1•kyrofa•4m ago•0 comments

Laws need reasons, but harder is comprehension

1•alpple•4m ago•0 comments

Plex sold me "iOS App Activation (enable streaming playback)" They've removed it

https://watch.plex.tv/
1•ddlm•5m ago•0 comments

What's new in Swift: April 2026 Edition

https://swift.org/blog/whats-new-in-swift-april-2026/
1•frizlab•6m ago•0 comments

Sam Altman falls out of love with universal basic income

https://www.businessinsider.com/sam-altman-ubi-universal-basic-income-view-changes-2026-4
1•MallocVoidstar•7m ago•0 comments

Baseline Mac-mini now starts at $799 (vs $599)

https://www.apple.com/shop/buy-mac/mac-mini
1•ahmadyan•7m ago•2 comments

Are AI's Consumer Applications Hitting a Wall?

https://www.bigtechnology.com/p/are-ais-consumer-applications-hitting
1•lschueller•9m ago•0 comments

'They Said A.I. Saved Me': How South Korea Is Checking on Its Seniors

https://www.nytimes.com/2026/04/28/world/asia/korea-ai-seniors-dementia.html
1•bookofjoe•11m ago•1 comments

Show HN: Single command to find the best matching jobs in HN

1•4m1rk•11m ago•0 comments

Area 51 just had 17 earthquakes in a single day

https://www.popsci.com/science/area-51-earthquakes/
3•PLenz•12m ago•0 comments

SD

2•milindsoni201•12m ago•0 comments

Elfmem: Evolving Agent Memory

https://benemson.com/blog/agents/elfmem-evolving-agent-memory
1•emson•13m ago•2 comments

The Illuminati in the United States

https://www.historytoday.com/archive/history-matters/illuminati-united-states
1•samizdis•13m ago•0 comments

Prime Gap Structure

https://github.com/zfifteen/prime-gap-structure
1•CGMthrowaway•15m ago•0 comments

Show HN: Turn Docker Compose files into airgap-ready UDS Packages

https://github.com/defenseunicorns-labs/compose-bridge-uds
1•willswire•21m ago•0 comments

Asd

2•milindsoni201•21m ago•0 comments

DIA tees up $800M data collection recompete

https://www.washingtontechnology.com/contracts/2026/05/dia-tees-800m-data-collection-recompete/41...
1•WaitWaitWha•22m ago•0 comments

Budget LTE Home Network

https://worldofmatthew.com/blog/budgetnetwork/
2•worldofmatthew•22m ago•0 comments

Give a 9B model broken tools. By hour 20 it'll have the correct diagnosis

https://ninjahawk.github.io/blog/posts/22-hour-session.html
2•ninjahawk1•24m ago•0 comments

Claude Code still doesn't support AGENTS.md

https://github.com/anthropics/claude-code/issues/6235
2•ggoo•33m ago•0 comments

GitHub Copilot Switches to Token-Based Billing for Developers

https://www.aiuniverse.news/the-shift-to-usage-based-ai-billing-arrives-for-developers/
3•aiuniversenews•38m ago•0 comments

Windows quality update: Progress we've made since March

https://blogs.windows.com/windows-insider/2026/05/01/windows-quality-update-progress-weve-made-si...
3•jovial_cavalier•44m ago•1 comments

Word Embedding Is Magic

https://joker666.github.io/blog/2025-11-12-word-embedding-is-magic
1•joker666•44m ago•0 comments

Google-Free Phone Is IP68-Rated and Has a Replaceable Battery

https://www.yankodesign.com/2026/05/01/this-google-free-phone-is-ip68-rated-and-has-a-replaceable...
2•exiguus•47m ago•0 comments

Approaching Zero Bugs?

https://daniel.haxx.se/blog/2026/04/30/approaching-zero-bugs/
5•wrxd•49m ago•1 comments

Enabling a new model for healthcare with AI co-clinician

https://deepmind.google/blog/ai-co-clinician/
2•haskellandchill•50m ago•0 comments

FBI cyber boss: China's hacker-for-hire ecosystem 'out of control'

https://www.theregister.com/2026/04/30/fbi_cyber_boss_chinas_hackerforhire/
3•Bender•51m ago•1 comments
Open in hackernews

Credit cards are vulnerable to brute force attacks

https://metin.nextc.org/posts/Credit_Cards_Are_Vulnerable_To_Brute_Force_Kind_Attacks.html
71•kodbraker•1h ago

Comments

sixtyj•1h ago
People should have a separate card for online payments and have just enough money on it for a payment.

I know that I am naïve :)

Back to the article: Weak point was a password that lead to another merchant not using 3D secure.

It seems from the article that bad actors have fully automated system, so (big) merchants should have handle automatic login attempts from the same ip address with different accounts. I see it from our wordfence logs that ip rotation is not so quick so it could be handled with some permanent ip blocking.

kodbraker•59m ago
I agree with the seperate card. That was my seperate card and luckily the amount was not quite big because of that.

>Weak point was a password that lead to another merchant not using 3D secure

Well leaking a password shouldn't cause leaking a whole ass credit card data imo. The same data is printed on physical receipts the markets print, sometimes 4 digits, sometimes 10 digits. It's still possible to brute force from unattended physical receipts on the market.

mrbluecoat•41m ago
Not affiliated, but Capital One Eno virtual cards work well for this purpose.
kadoban•34m ago
Tbh, fraud for credit cards is covered by the bank, so I typically just don't care. I just check my statements for anything that looks off.
stavros•33m ago
I think https://privacy.com is the best solution we can have with the current system.
Foofoobar12345•32m ago
Mercury now offers personal bank accounts. You can create virtual debit cards just like companies can with Brex/Mercury/Ramp etc.
psychoslave•23m ago
My previous bank provided this virtual card service on demand. You create the card for a single purchase with a specific amount and that’s it. I moved to an other bank when getting an affordable mortgage loan became impossible in it for me.
badgersnake•57m ago
Oh okay, so this is why Amex launched the online card in the app that changes the Cvv2 every few minutes.
dogma1138•55m ago
Amex was late to the party with virtual cards.
majorchord•35m ago
None of my banks or credit cards support them... not sure how widespread it really is.
ranger_danger•37m ago
I had no idea amex offers virtual cards... but I looked everywhere in the app and cannot find any such option?
kmoser•15m ago
https://www.americanexpress.com/en-gb/services/ways-to-pay/d...
janalsncm•51m ago
At least with a credit card you have some fraud protection. Report it and the charge should be reversed. And chargebacks are possible.

With a debit card you’re playing with your own money.

tptacek•45m ago
That has not been my experience with debit cards in the US at major banks, at all, over decades.

(I'm pathologically avoidant of credit cards, which I think are mostly pointless.)

yladiz•43m ago
Why do you think they’re pointless?
tptacek•33m ago
For most of my adult life I haven't been able to get a credit card --- even after we sold Matasano Security, with the proceeds of that acquisition sitting in a money market checking account at the giant bank I use, that bank would still only issue me a secured card. I pay my bills and all, but at some point when I was like 19 I bought a shirt at Nordstroms and they signed me up for a card and I didn't pay enough attention so I presumably still somehow owe them $40, and it wrecked my credit score.

No part of my life has been harder for not having revolving credit. I had a family, with two kids, starting in my very early 20s; I have lived on ramen wages several times since then; I've bought houses, rented cars, all that stuff. There's really been no point I can think of where I felt like having a revolving credit card would have made any of it more manageable.

I'd get points and stuff (I have a card now, it has a fuckload of points on it) but that's just an incentive to use the cards, not an intrinsic case for them.

I think most people would be much better off just using debit cards, and operating with the funds they actually have. And, again: it is in fact easy for me to say that today, but I believed the same thing when I was younger.

The crazy thing is coming to realize how little your credit score matters if you decide not to play this game. People say it will impact your ability to get a mortgage or a lease, but: not my experience!

skeeter2020•22m ago
>> I think most people would be much better off just using debit cards, and operating with the funds they actually have.

Totally agree, but - and this is another example where the rich(er) benefit - if you actually have the money and good financial discipline you're better to put everything on your CC and pay it off in full monthly. Let the merchants finance for free for 3 weeks, plus maybe get perks like purchase protection and extended warranty.

lIl-IIIl•42m ago
You can reverse the charges on debit cards, but the money is withdrawn at the time the charge is made. This is not the case for credit cards.
tptacek•39m ago
That's true, but it's not the claim the parent commenter made.
devmor•39m ago
Most US banks will credit your account for the amount of the dispute immediately upon starting the investigation, so it is functionally equivalent from a consumer perspective.
epcoa•33m ago
Well good for you. Us poors in the US like them for what they’re worth.
tptacek•31m ago
Like what? That banks will make you instantly whole on card fraud to debit cards, and are legally required to do so? I like that too.
epcoa•27m ago
In addition to nominal fraud prevention (and how is any debit card better) there’s nothing better to claw back transaction fees, so what the fuck am I supposed to do?
tptacek•24m ago
I'm not saying debit cards are better at fraud prevention and response; I'm saying they're roughly equivalent. The downsides of credit cards are self-evident.
epcoa•19m ago
So maybe I’m wrong but the belief is that debit card protections are worse than a credit card in the US. I really don’t have the personal time to test this, but I do know that when I dispute on a credit card it is initially removed until proven valid.

Again maybe I’m wrong but I don’t agree they are equivalent. It sure fucking feels that way, the money isn’t threatened from my account.

jabroni_salad•17m ago
When my bank account got drained, I could not pay rent or any bills. I had enough cash for about a week of food. It took 4 weeks for the bank to decide I could be made whole. Ever since then I have never even put a debit card in my wallet. I know what the laws say. I have read endless "well banks usually[...]" type messages. and yet all the same I one day awoke to find myself transformed into a giant cockroach.
tptacek•14m ago
EFTA Reg E gives banks 10 days to make you whole (less an optional $50 deductible depending on when the fraud was reported). My experience going back decades is that they've simply reverted the charges instantly. What bank were you using? My experience is with the usual suspects --- Citi, Chase, and BofA.

Under the law, credit card issuers actually have more time to deliberate before making you whole, not less.

jabroni_salad•6m ago
sorry, I ninja edited my comment to avoid having an identical discussion as the previous many times I brought up this topic.

It is nice that you know what the law is but that isn't the same as the law being followed. Also the bank was PNC, not the biggest guy ever but not a small player either.

ranger_danger•42m ago
In the US at least, there are still federal protections for debit card fraud: https://uslawexplained.com/debit_card
Natfan•39m ago
how is it not also your money when using a credit card? It's in the name, "credit" card. you have to pay it off, no? (i have never ever used a credit card)
idontwantthis•37m ago
It comes with fraud protection and your money does not move anywhere until the end of the next month. With a debit card your money moves immediately.
kadoban•30m ago
As I understand it, debit cards do have some fraud protection too, but even if it's the same (I don't think it is), it's a way different power dynamic if you're begging for a bank to give you money back (debit card) vs just disputing your credit card bill.

In practice credit cards just have way better fraud protections.

skeeter2020•28m ago
You are making a purchase ON credit, and unless you are wildly negligent the merchant who accepts payment for the fraudulent purchase eats the costs. You may have to pay the balance owed while the chargeback works through the system but you will not ultimately pay for it.

Plus - like it or not - our society builds your credit based on your use of a credit card. And if you pay your balance in full every month I'm not sure why anyone would prefer paying up front (debit) vs. free financing.

bediger4000•51m ago
Some have speculated that the entire credit card system is compromised, end to end. I think the real question is why NSA didn't intervene in the early 1990s. Online commerce was just beginning, and the importance of electronic funds transfer was obvious, but the method wasn't set in stone. NSA knew about public key crypto well before the rest of us did. They could have helped set up very secure electronic payments, but chose not to for unknown reasons.
yieldcrv•45m ago
NSA prefers compromised security so that answers your question

Credit card system was already around for decades before though

fhdkweig•40m ago
I heard a rumor that NSA suggested changes to DES encryption that strengthened it from differential cryptanalysis attacks that the public cryptologists weren't aware of yet.
plorkyeran•30m ago
That isn't a rumor? It's a pretty well documented fact that the NSA was involved in the design of DES and that the magic numbers that people initially assumed were a back door of some sort turned out to make differential cryptanalysis more difficult than randomly chosen ones would have.
jongjong•13m ago
Reminds me of when I wrote a lightweight blockchain from scratch including the Lamport OTS (quantum resistant) signature scheme and then most of the leaders from my crypto community at the time turned against me for no reason.

The signature scheme I implemented was thoroughly tested. Implemented from reading the Lamport and Merkel academic papers and under 1000 lines of code in total so pretty easy to audit... Nobody found an issue with it in 5 years.

bagels•38m ago
"The RSA algorithm was publicly described in 1977 by Ron Rivest, Adi Shamir, and Leonard Adleman at MIT"
amluto•39m ago
Another mistake:

> The data they took with the attempt of purchase is the card is still usable (not cancelled)

The payment flows should not distinguish between a nonexistent card, a cancelled card, and a valid card that needs 3D Secure. I bet the banks could even implement that without any cooperation on the part of the merchants.

gardenhedge•35m ago
Why not debit cards too?
J8K357R•34m ago
I once had a person that was hired by my company and then started bragging about finding a way to add stored value to gift cards. Then come to find out they were under investigation by the FBI. This was a government contractor mind you, so the biggest security guard I’ve ever seen showed up to escort them out.
kyleee•9m ago
What does “add stored value to gift cards” mean?
janpeuker•34m ago
Payment processors don't allow just brute forcing all card numbers a.k.a. card enumeration or card testing [1][2] and card schemes penalise merchants and payment processors heavily if they don't take measures against it [3].

1) https://stripe.com/newsroom/news/card-testing-surge

2) https://stripe.com/blog/the-ml-flywheel-how-we-continually-i...

3) https://docs.stripe.com/disputes/monitoring-programs#enumera...

kodbraker•23m ago
The rate they try becomes very non frequent when they use multiple card validation apis. I'm not sure how it can be related when it's different pan numbers, different source ips etc.

Enumerating CVC2 with a single PAN is a different story.

julienchastang•33m ago
Related story and wondering if the OP may have been chasing red herrings. I recently noticed an unauthorized charge for a small amount on my credit card (something about FB/Meta). Likely someone probing the card to see if anyone would notice. I called the CC company, had them removed the charge, canceled the card and had them send me a new card (5-7 business days). With the brand new unused card (new CC number, new expiration date, new CVV), the fraudulent payments resumed (again FB/Meta). How is this possible? The reason: digital wallets. Your credit card number, etc. transfers via digital wallets even when you cancel the card. I again called the credit card company and this time, told them to cancel all the digital wallets (there were 99 of them!). There is no way to do this online. You have to speak to a human in a call center. You then have to sit through a lecture about how all your renewing payments are going to reset and you will have to re-establish them will all merchants. "Yes, I understand that. Please cancel the card and all digital wallets!" Then you have to hold for twenty minutes (why? what are they doing? manually canceling all the digital wallets?). The lesson I learned here is that canceling your credit card may not be what you think. Also recurring payments must be incredibly lucrative and canceling them must amount to a big loss in revenue. (Edited for grammar.)
kodbraker•22m ago
For my case, it was almost certain. As it happened single day, the card i use was a virtual card only used in couple big ecommerce websites etc.

If it was leaked somewhere else, i think they wouldn't bother logging in some unrelated account of mine in an ecommerce website.

cj•21m ago
I’m not sure about “digital wallets”, but the concept of updating credit card details after a new card is issued does exist, and it’s a service offered by credit card companies.

Blog post from Stripe:

https://stripe.com/resources/more/what-is-a-card-account-upd...

tety•16m ago
Digital wallets as in Apple/Google Pay? I had a similar thing happen and I am wondering what did you make of this double charge, what did the attackers do in your opinion?
bradley13•31m ago
Credit cards as a while use a security model from...what, the 1970s? Sure, they've patched by adding the 3-digit CVC, but really? A huge industry can't do better than that? Honestly, it's pathetic...
psychoslave•27m ago
https://en.wikipedia.org/wiki/3-D_Secure
dataflow•31m ago
Okay but... so what? Authentication is a means, not an end. They seem to be missing that what matters at the end of the day is how much money/time/resources actually get lost, and who's on the hook for it. If that's negligible then isn't that mission accomplished? If we could live in a society where your name was enough and you didn't need a card number at all, and yet theft was still low and you still got your money back, that would be even better, not worse.
evan_a_a•29m ago
>As a consumer, I thought I was safe; when saving my credit card to a billion dollar valued european merchant, or when i purchase something from supermarket and ignore the receipt, but the reality is slightly different from that.

>I got the money back via chargeback in short time.

So as evidenced, you are protected by the fraud infrastructure. The bank ate the loss for the fraud and you were made whole. In the end, the banking system cares about fraud loss. And they are exceptionally good at finding the fraud. Making changes to the card payment system is extremely difficult, due to the vast scale of the systems, so without a very good justification that a particular change will move the needle on fraud rates, the banks will opt to not make the changes.

mothballed•25m ago
It's my experience that the bank will give up against a motivated chargeback counterparty.

My experience with ebay (stolen credit card) in particular was that things were going well until e-bay sent their stack of paperwork to my bank. Then my chargeback was reversed and shortly after that even my bank account was closed.

So you're not in the clear once you get your chargeback back. That is done initially while they give the other party time to respond. I think it took 30 days or so for ebay to bury me in paperwork, get the chargeback unwound again, and their schpeel was so effective that my bank themselves then accused me of being the fraudster.

As for

> The bank ate the loss for the fraud

I'm not 100% that's true. The entire reason why the chargebackee wants to contest it is because either the chargebackee or the chargebacker is eating the loss. The bank isn't eating that loss. There is no way E-bay would have bothered contesting my chargeback and paying their white collar workers for professional time researching if the bank was just going to eat it.

spankalee•22m ago
> The bank ate the loss for the fraud and you were made whole

_If_ you notice the fraudulent charge.

jonathanlydall•13m ago
Banks don’t really eat the loss, instead they ensure all their services have enough of a markup to cover the cost of fraud.

All consumers collectively pay for all the fraud, it’s just that we don’t tend to realize it as it’s not a specific line item on any of our bills, instead we all pay just a little more than we should for everything we buy.

throawayonthe•6m ago
yes, obviously all of the bank's money comes from consumers. what other scenario do you see where a bank(etc) "eats the loss" but the money somehow comes from somewhere else
mcoliver•26m ago
Virtual credit cards have been a thing for years. I remember bank of america or Citi providing them to me 15+ years ago. If I recall it was a java app or maybe even a standalone exe. Shocked they never took off more broadly.

Robinhood absolutely nails this. Best virtual credit card system I have ever used. So seamless. Can auth a card for one time use, 24 hours, or indefinite until you cancel. Such a great UI / UX

chaqchase•25m ago
Rate limiting and anomaly detection are the real gatekeepers here. A lot of "fraud prevention" is still reactive.
jonathanlydall•22m ago
If 3D secure was mandatory everywhere that would help a lot, but if I understand correctly, it’s not really used in the US and with them being so big, card issuers are largely forced to allow non 3D secure requests or their clients will be unable to use their cards for too many things.

So an enormously good anti-fraud mechanism is severely handicapped.

It’s really frustrating for most of the rest of the world.

I don’t get it, do US citizens prefer being defrauded over what is perceived as a slight inconvenience?

Even for non-victims of fraud, they still pay for the fraud as all merchants up the prices of their goods to cover fraud costs/insurance.

gnopgnip•19m ago
How much is lost to fraud that would be prevented by 3d secure, 0.1%?
fckgw•18m ago
> I don’t get it, do US citizens prefer being defrauded over what is perceived as a slight inconvenience?

Do you think we are requesting to have less secure payment methods or something?

No, we don't "prefer to get defrauded", but things like this are a matter of negotiation between the card issuers and the merchants.

Denvercoder9•14m ago
> but things like this are a matter of negotiation between the card issuers and the merchants.

Not necessarily, the EU has mandated strong customer authentication by law (PSD2), and as a result has practically universal 3DSecure support.

Hupriene•8m ago
Bold of you to assume that the public has more influence on legislation than lobbyists do in the US.
netik•8m ago
One other thing to add to the story is that the merchants can’t select what level of security they want from the credit card processor. For example, with authorize.net, you can accept the payment with the address doesn’t matter it doesn’t match.

I guess the real question here is how are they able to steal from you? Were they purchasing gift cards from a merchant with lax security?

It’s one thing to guess a number it’s another thing to get the money out of the system