this post was submitted on 03 Mar 2026
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[–] lIlIlIlIlIlIl@lemmy.world 141 points 4 weeks ago (1 children)

It’s going to be hilarious when these get hacked

[–] Zagorath@aussie.zone 115 points 4 weeks ago (3 children)

Reminder that by law, if the price is listed wrong:

Sometimes the price of an item in store or online at the checkout may not match the displayed or advertised price in store or online. If this happens, even by mistake, the business must either:

  • sell the product for the lowest price - either the checkout price, or displayed or advertised price, or
  • stop selling the item until the incorrect price is corrected.
[–] docus@lemmy.dbzer0.com 46 points 4 weeks ago (2 children)

What law? In what country?

[–] Zagorath@aussie.zone 84 points 4 weeks ago

Australia, the country the article is talking about. That was a quote from the ACCC website.

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[–] MimicJar@lemmy.world 10 points 4 weeks ago (1 children)

stop selling the item until the incorrect price is corrected

Not a lawyer but couldn't they just refuse to sell it to you? We all know it would be bullshit but couldn't a company say "Oh that minimum wage clerk made a mistake, but don't blame them, just an honest mistake."

Or is the law, if it's on the shelf, it must be honored?

[–] Zagorath@aussie.zone 13 points 4 weeks ago

They would have to refuse to sell to anyone. It would likely not be lawful to leave it on the shelf and sell it at the higher price to someone else who might not have noticed the discrepancy, until they fix up the shelf pricing.

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[–] bitjunkie@lemmy.world 77 points 4 weeks ago (5 children)

I will institute my own "dynamic pricing" scheme if this ever happens

[–] Thatuserguy@lemmy.world 34 points 4 weeks ago (2 children)

Is it really dynamic if the price is always "free"?

[–] Winter_Oven@piefed.social 12 points 4 weeks ago (3 children)

surely negative numbers are in the cards? since we deserve the compensation for all the trouble

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[–] cupcakezealot@piefed.blahaj.zone 62 points 4 weeks ago (3 children)

remember if you see someone shoplifting food no the fuck you didnt

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[–] Almacca@aussie.zone 58 points 4 weeks ago

~~Dynamic pricing~~ Price gouging. FTFY.

[–] its_kim_love@lemmy.blahaj.zone 52 points 4 weeks ago (2 children)

If my local store switches to digital price tags to do this I'm just going to gather as many as I can and flush them down the toilet.

[–] Ulrich@feddit.org 34 points 4 weeks ago (6 children)

It's a nice thought but good luck not getting caught on the 3k cameras in the store and following you to your car.

[–] trolololol@lemmy.world 10 points 4 weeks ago (3 children)

It would be a shame if your phone was infected by a malware that rewrites all the prices in the tags in your vicinity.

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[–] harmbugler@piefed.social 18 points 4 weeks ago* (last edited 4 weeks ago) (1 children)

My local Woolies has had e-ink tags for at least two years, maybe more. Between this and Coles hiring Palantir, we mostly shop at Aldi. Bunnings and Kmart using facial recognition as if it's no biggie as well. How long until they partner with CBA to check your credit card limit as you stand in front of the bananas to see how much you'll pay?

[–] its_kim_love@lemmy.blahaj.zone 11 points 4 weeks ago (1 children)

They're opening an Aldi's near me. I'm excited.

[–] MintyFresh@lemmy.world 12 points 4 weeks ago

Aldi's is the shit. No bloat, no bs, just groceries. They don't have some stuff, but for the staples you're set. I usually go to the more traditional grocery store every 4th trip or so.

[–] scarabic@lemmy.world 42 points 4 weeks ago (1 children)

Let’s call it what it is: price discrimination.

[–] Imgonnatrythis@sh.itjust.works 11 points 4 weeks ago

Dynamic sounds way more fun!

[–] Zephorah@discuss.online 37 points 4 weeks ago (7 children)

I’m still not clear on exactly what triggers this. Is it phone location, because a phone number is linked to all your data (unless you’ve been gaming it for the last 5-10yrs)? Do I walk by with my phone and the price goes up?

Is it like goodwill? Does the price change as you’re checking out? Do I grab a 2lb bag of medium roast coffee beans for $13, and because buying it consistently for decades, it’s now $18 at checkout? But is still $13 for the guy behind me who decided to try whole bean over pre-ground?

If rich people turn off their phones before hitting the parking lot and poor people leave theirs on, does the entire store get cheaper?

If you take a pic with your phone of the “advertised” price does that mitigate sudden increases while checking out, if you’re even watching?

Does having your unemployed, deadbeat uncle or kid do the shopping from their phone make it cheaper for the household?

What are the triggers?

[–] OfCourseNot@fedia.io 35 points 4 weeks ago (10 children)

We've had them for quite some time. They don't change price for individual customers, I don't think they change the price in the middle of the day either. But, I guess, they can change the prices just before opening, like if the wether service forecasts a rainy day they could rise the price of umbrellas and raincoats. Cold? Hot chocolate and soups. Hot? Ice cream and cold drinks. Certain asshole died overnight? Champaign and confetti cannons through the roof. And so on...

[–] frongt@lemmy.zip 50 points 4 weeks ago (1 children)

Oh, you mean price gouging

[–] Passerby6497@lemmy.world 20 points 4 weeks ago

Oh, no no no. It's called "capitalism". Supply and demand pricing at it's finest! /s

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[–] chaogomu@lemmy.world 9 points 4 weeks ago

That's the personalized prices. That's step two.

This one is the digital price tags that let the store manager or corporate office instantly raise prices throughout the store for everyone.

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[–] Ontopourmama@lemmy.world 33 points 4 weeks ago (4 children)

In other news, shoplifting is inexplicably on the rise in shops featuring dynamic pricing.....

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[–] Babalugats@feddit.uk 27 points 4 weeks ago (2 children)

Boycott the stores that use them, it might help them change their mind behind they become the norm.

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[–] No_Bark@lemmy.dbzer0.com 25 points 4 weeks ago (1 children)

It is morally correct to shoplift from stores that do this.

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[–] NotMyOldRedditName@lemmy.world 25 points 4 weeks ago* (last edited 4 weeks ago) (7 children)

Should be against the law to change the price after the shop opens at something like a grocery store. Nobody should be able to shop anywhere where the price you pick it up at can change by the time you get to the checkout.

Edit: Maybe there could be some exception for mid day price changes if you emptied the entire store of customers first, but enforcing something like that seems difficult.

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[–] minorkeys@lemmy.world 23 points 4 weeks ago

Then I won't be going to that supermarket.

[–] SocialMediaRefugee@lemmy.world 21 points 4 weeks ago

I'm going to start dynamic payments. "Oh, between 6-9pm I pay 10% less."

[–] nutsack@lemmy.dbzer0.com 20 points 4 weeks ago* (last edited 4 weeks ago) (4 children)

and then there will be a really popular AI driven phone app that you will use to scan items and find out if you're being ripped off or not

[–] pHr34kY@lemmy.world 14 points 4 weeks ago (10 children)

I already have a browser plugin that tells me the price history of everything at Coles. There's one for Woolies too.

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[–] TachyonTele@piefed.social 15 points 4 weeks ago (2 children)

These have got to be hackable in a fun way

[–] IHeartBadCode@fedia.io 16 points 4 weeks ago (1 children)

Firmware on these is pretty tight. They're usually using CC2510s or CC2530s. The CC2510 has a voltage glitch hack that you can use to attempt to read the contents via the DCOUPL capcitor, but it's not very effective and you can only read a few bytes per attack.

You can see a github some tools some have created here. Eventually someone is going to read the firmware off theses and be able to hack them, it's just a matter of time.

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[–] dewey_mcbrewster@lemmy.world 14 points 4 weeks ago (2 children)

If they want to do dynamic pricing, maybe we'll just have to start dynamic shopping.

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[–] humanspiral@lemmy.ca 13 points 4 weeks ago (3 children)

A problem area is pricing that changes 10 minutes after you put it in basket but before checkout. Though OP did go through some other abuse scenarios, though some were far fetched. This can't allow a store to personalize prices the way a web site can.

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[–] Hairyfishnuts@feddit.online 13 points 4 weeks ago

Thanks. I hate it.

[–] starman2112@sh.itjust.works 12 points 4 weeks ago (4 children)

I've already sent feedback to Walmart about my refusal to buy anything with a digital price tag. The thing is, I believe them when they say that prices are only updated between 1:00 and 2:00 a.m. The problem is that that policy could change literally any time.

Walmart has every inch of their store covered in cameras. They have facial recognition systems so they know who I am the moment I walk in the store. They know I buy graham crackers. They know I've put up with price increases in the past. What is preventing them from adding $0.10 to those graham crackers' price tag the moment I walk down the crackers aisle? Literally nothing. They could, and that's reason enough for me to boycott

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[–] timestatic@feddit.org 11 points 4 weeks ago (2 children)

They already do that, just not as frequently. They change price tags of items every day by hand

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[–] SocialMediaRefugee@lemmy.world 11 points 4 weeks ago

Start pushing your state gov to ban this.

[–] proudblond@lemmy.world 11 points 4 weeks ago* (last edited 4 weeks ago) (3 children)

The chain grocery store near us (Safeway) has had stupidly high prices since the pandemic. I decided I’m not going to shop there anymore unless I really have to. We are lucky to have a locally-owned, small chain grocery store very close to us. Prices are high but honestly not much if at all higher than Safeway and I’d rather pay a small premium to help them stay in business. Also I doubt they would ever opt into something like this stupid price scheme, but Safeway absolutely would and will.

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[–] Cheeseballll1@lemmy.world 11 points 4 weeks ago

Free epaper displays!

[–] epicthundercat@lemmy.world 11 points 4 weeks ago
[–] cmhe@lemmy.world 10 points 4 weeks ago* (last edited 4 weeks ago) (8 children)

In Germany the price is actually set at the cashier, not the tag. I found that out the hard way once, where the price tag was wrong and I had to pay more.

So dynamic pricing wouldn't even require deploying these smart tags, the cashier or the 'smart' self-checkout could just do it on their own. They could just use their cameras, analyze your face to figure out if you are in a hurry or not, or in any other way willing to accept a higher price and then offer you the ware to something you are probably going to accept.

The future is realtime individualized price gouging.

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[–] HasturInYellow@lemmy.world 9 points 4 weeks ago

Dynamic mass theft.

Innovative exploitation.

Next-Generation sculduggery.

[–] BenchpressMuyDebil@szmer.info 9 points 4 weeks ago (1 children)

In Poland it's already there in stores owned by the German Schwarz-Gruppe - Lidl and Kaufland. One might want to start shopping local to get exposed to 100% free range organic greed instead of lab-optimized greed at big stores.

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[–] br0da@lemmy.world 9 points 4 weeks ago

Please make it stop

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