krellor

Hey, sorry it took so long to see your question. Here is a paper (PDF) on the subject with diagrams.

https://www.research-collection.ethz.ch/bitstream/handle/20.500.11850/42365/eth-4572-01.pdf

The link is composed of two parts, the emitter and the receiver. The emitter captures the LF signal and up-converts it to 2.5 GHz. The obtained 2.5 GHz signal is then amplified and transmitted over the air. The receiver part of the link receives this signal and down-converts it to obtain the original LF signal. This LF signal is then amplified again and sent to a loop LF antenna which reproduces the signal that was emitted by the car in its integrity.

Edit: and here is a times article that covers the problem in one area. https://www.nytimes.com/2024/02/24/world/canada/toronto-car-theft-epidemic.html

Yeah. Shockingly people store things where it is convenient to have them. :) I’m glad I didn’t have a keyless system to with about.

I did read the article. I’m unfamiliar with the “hacking” tools or methods they mention given they use terms like emulator. I was simply sharing one wireless attack that is common in certain areas and why.

I think most of the wireless attacks aren’t trying to be so sophisticated. They target cars parked at home and use a relay attack that uses a repeater antenna to rebroadcast the signal from the car to the fob inside and vice versa, tricking the car into thinking the fob is nearby. Canada has seen a large spike in this kind of attack. Faraday pouches that you put the fob inside of at home mitigates the attack.

I’m not sure about what the article is referencing, which is probably a little more exotic, but relay attacks are very common against keyless cars. Keyless cars are constantly pinging for their matching fob. A relay attack just involves a repeater antenna held outside the car that repeats the signal between the car and the fob inside the house. Since many people leave the fob near the front of the house, it works and allows thieves to enter and start the car. Canada has has a big problem with car thieves using relay attacks to then drive cars into shipping containers and then sell them overseas.

Where I live they are mostly used in school zones and residential areas, and they only trigger when going 12+ miles over the limit. Seems pretty reasonable.

I’m sure it varies by area.

Where I live they install speed cameras in residential areas, school zones, and bus routes. They also only trigger when you are going 12 or more over the limit, and the highest speed limit I’ve seen with one these was 45mph, 35mph during school times. They also have an officer review and sign the citation, it is a flat fee, and no points. If needed, the officer who reviews will testify in court.

If someone is going 12+ over on school zones, school bus routes, and residential neighborhoods, then they deserve their fine.

Thanks for the article, it was a fun read. I’ll have to go back and re-read the majority opinion because I do remember some interesting analysis on it even if I disagree with the outcome.

While not related from a legal standpoint, the use of iPhones and intermediate devices reminds me of a supreme Court case that I wrote a brief about. The crux of it was a steaming service that operated large arrays of micro antenna to pick up over the air content and offer it as streaming services to customers. They uniquely associated individual customers with streams from individual antenna so they could argue that they were not copying the material but merely transmitting it.

I forget the details, but ultimately I believe they lost. It was an interesting case.

Lol, I clearly need more coffee. Good play!

Edit: whoooosh, goes the joke over my head.😂

On Futurama one of the popular phrases from the character zoidberg was something like “hey, look it’s me your nephew” when he thought his uncle was rich. Don’t recall the details, but just riffed on the meme.

Look, it’s me, your boss. Venmo: @NotZoidberg.

Lol, yep. Twenty years give or take testing just about everything along the way. 😂

I have to admit I used FreeBSD as my daily driver years ago. But I’ve also used everything else in the list at one point or another.

Since everyone else gave a joke answer I’ll take a stab in the dark and say the upper limits would be the availability of hydrogen and physical limitations in transforming heat output into electricity. The hydrogen is the most common element but 96% of it is currently produced from fossil fuels. After that, it would be how well you can scale up turbines to efficiently convert heat to electricity.

Part of that is the racket that is software licensing for mainframes. Many vendors like CA7 charge based on the machines computational capacity. You can introduce soft limits or send usage reports, but not all vendors accept that to lower your price. Super expensive software costs, at least back when I worked on zOS.

I’ve been using Duolingo to learn Spanish, and there are a lot of things I dislike about it. However, credit where credit is due, I don’t have a huge drive to learn but rather I’m opportunistically learning as I have time for self improvements sake. And for that, Duo does an ok job of feeding me new lessons and slowly expanding my knowledge of the language in a few minutes a day, and it’s free. After about three months I can go to a Mexican cafe, get a table, ask about the servers day, and chit chat about my kids, all in Spanish.

Which, if I’m being honest with myself, is more than I would have gotten self studying.

Right, Google isn’t one to trust. So paid services and clear data handling practices.

I would say don’t trust free services in general. There are plenty of paid service providers that handle your data well.

That’s a good takeaway. AWS is the ultimate Swiss army knife, but it is easy to misconfigure. Personally, when you are first learning AWS, I wouldn’t put more data in then you are willing to pay for on the most expensive tier. AWS also gives you options to set price alerts, so if you do start playing with it, spend the time to set cost alerts so you know when something is going awry.

Have a great day!