With all of the various keyboards, mouses (mice?), and other human interface devices (HID) available for our computers, there’s no possible way for developers to anticipate every type of input for every piece of software they build. Most of the time everything will work fine as long as some basic standards are kept, both from the hardware and software sides, but that’s not always the case. [Losso] noticed a truly terrible volume control method when visiting certain websites while also using a USB volume knob, and used this quirk to build a Breakout game with it.

It turns out his volume control knob would interact simultaneously with certain video players’ built-in volume control and the system volume for the operating system, leading to a number of undesirable conditions. However, the fact that this control is built in to certain browsers in the first place led to this being the foundation for the Breakout clone [Losso] is calling KNOB-OUT. Unlike volume buttons on something like a multimedia keyboard, the USB volume control knob can be configured much more easily to account for acceleration, making it much more faithful to the original arcade version of the game. The game itself is coded in JavaScript with the source code available right in the browser.

If you’d like to play [Losso]’s game here’s a direct link to it although sometimes small web-based projects like these tend to experience some slowdown when they first get posted here. And, if you’re looking for some other games to play in a browser like it’s the mid-00s again, we’re fans of this project which brings the unofficial Zelda game Zelda Classic to our screens.

A word of caution if you’re planning to try this cryocooler method for making liquid nitrogen: not only does it involve toxic and flammable gasses and pressures high enough to turn the works into a bomb, but you’re likely to deplete your rent account with money you’ll shell out for all the copper tubing and fittings. You’ve been warned.

In theory, making liquid nitrogen should be as easy as getting something cold enough that nitrogen in the air condenses. The “cold enough” part is the trick, and it’s where [Hyperspace Pirate]’s cryocooler expertise comes into play. His setup uses recycled compressors from cast-off air conditioners and relies on a mixed-gas Joule-Thomson cycle. He plays with several mixtures of propane, ethylene, methane, argon, and nitrogen, with the best results coming from argon and propane in a 70:30 percent ratio. A regenerative counterflow heat exchanger, where the cooled expanding gas flows over the incoming compressed gas to cool it, does most of the heavy lifting here, and is bolstered by a separate compressor that pre-cools the gas mixture to about -30°C before it enters the regenerative system.

There’s also a third compressor system that pre-cools the nitrogen process gas, which is currently supplied by a tank but will eventually be pulled right from thin air by a pressure swing adsorption system — basically an oxygen concentrator where you keep the nitrogen instead of the oxygen. There are a ton of complications in the finished system, including doodads like oil separators and needle valves to control the flow of liquid nitrogen, plus an Arduino to monitor and control the cycle. It works well enough to produce fun amounts of LN2 on the cheap — about a quarter of the cost of commercially made stuff — with the promise of efficiency gains to come.

It does need to be said that there’s ample room for peril here, especially containing high pressures within copper plumbing. Confidence in one’s brazing skills is a must here, as is proper hydro testing of components. That said, [Hyperspace Pirate] has done some interesting work here, not least of which is keeping expenses for the cryocooler to a minimum.

youtube.com/embed/eqxwsfy72L0?…

We’ve often thought that while going to the moon in the 1960s was audacious, it was just the flashiest of many audacious feats attempted and accomplished in the 20th century. Imagine, for a minute, that the phone system didn’t exist today, and you stood up in front of a corporate board and said, “Let’s run copper wire to every home and business in the world.” They’d probably send you for a psychiatric evaluation. Yet we did just that, and, in the United States, that copper wire was because of the Bell system, which [Brian Potter] describes in a recent post.

The Bell company, regardless of many name changes and divisions, was clearly a very important company. [Brian] points out that in 1917, it was the second-largest company in the United States and continued to grow, eventually employing a whopping 1% of the entire U.S. workforce. That’s what happens when you have a monopoly on a product that is subject to wild demand. In 1900, Bell handled 5 million calls a day. By 1925, that number was over 50 million. In 1975, it was just shy of 500 million. If Wester Electric — just one part of Bell — was its own company, it would have been the 12th largest company in the U.S. during the 1970s.

From a technology point of view, the system was impressive in scale and rate of growth. In 1877, AT&T — the name after a restructuring — had 600 customers. A year later, it had 10,000. By 1881, that number was 100,000, and only 9 U.S. cities with more than 10,000 people lacked a phone exchange. By 1900, the 800,000 telephones in use required 2 million miles of wire!

That 2 million miles of wire had to go somewhere. New York City had hundreds of 90-foot poles, each carrying 300 wires, and people were complaining about the wires being in view. That caused AT&T to go underground. In 1888, a phone cable had 50 pairs of #18 wire. By 1939, #26 wire allowed 2,121 pairs of wires in a single cable.

Remember that the early phone system had no amplifiers. When tubes arrived, this allowed longer distances on smaller wires and radio links to reach the world. Bell’s monopoly allowed them to innovate but also hurt others who wanted to innovate.

Recentemente, un attore malevolo ha dichiarato di aver reso pubblici un milione di record di dati estratti da Google, creando un notevole allarme sulla sicurezza dei dati personali.

L’informazione è apparsa su un forum online, in un post datato 15 luglio 2024. L’utente “Hana” ha pubblicato un thread intitolato “Google – 1 Million Scrape – Leaked, Download!“, fornendo dettagli su questa presunta fuga di dati.

Contenuto della Fuga di Dati

La fuga di dati è suddivisa in due parti distinte, contenenti diverse tipologie di informazioni:

1. Prima Parte: Recensioni
   
   • Numero di Linee: 1,453,846
   • Informazioni Contenute:
     
     • Valutazione (Rating)
     • Nome del Recensore (ReviewerName)
     • Testo della Recensione (ReviewText)
     • Categorie (Categories)
     • ID Luogo di Google Plus (gPlusPlaceId)
     • Tempo della Recensione in formato Unix (unixReviewTime)
     • Tempo della Recensione (review time)
     • ID Utente di Google Plus (gPlusUserid)

     
     

   
   

2. Seconda Parte: Utenti
   
   • Numero di Linee: 3,747,938
   • Informazioni Contenute:
     
     • Nome (Name)
     • Lavori (Jobs)
     • Luogo Attuale (CurrentPlace)
     • Luoghi Precedenti (PreviousPlaces)
     • Istruzione (Education)
     • ID Utente di Google Plus (gPlusUserid)

     
     

   
   

Implicazioni e Rischi

La fuga di dati descritta comprende una quantità significativa di informazioni personali e recensioni, potenzialmente sensibili. La divulgazione di tali dati può portare a gravi conseguenze per la privacy e la sicurezza delle persone coinvolte. I dati sulle recensioni potrebbero essere utilizzati per analisi di mercato non autorizzate, mentre le informazioni sugli utenti possono essere sfruttate per attività di phishing, furti di identità e altri crimini informatici.

Conferma e Affidabilità della Fonte

Al momento, non possiamo confermare con precisione la veridicità della violazione, poiché l’organizzazione non ha ancora rilasciato alcun comunicato stampa ufficiale sul proprio sito web riguardo l’incidente. Pertanto, questo articolo dovrebbe essere considerato come una ‘fonte di intelligence’ piuttosto che una conferma definitiva della fuga di dati.

Conclusione

La dichiarazione di una fuga di dati di tale entità da parte di Google, se confermata, rappresenta una seria minaccia per la sicurezza e la privacy degli utenti. È essenziale che le aziende e gli individui adottino misure proattive per proteggere le proprie informazioni personali e minimizzare i rischi associati a tali violazioni di dati. Google e altre piattaforme dovranno intensificare gli sforzi per garantire la sicurezza dei dati e prevenire future fughe di informazioni.

Come nostra consuetudine, lasciamo sempre spazio ad una dichiarazione da parte dell’azienda qualora voglia darci degli aggiornamenti sulla vicenda. Saremo lieti di pubblicare tali informazioni con uno specifico articolo dando risalto alla questione.

RHC monitorerà l’evoluzione della vicenda in modo da pubblicare ulteriori news sul blog, qualora ci fossero novità sostanziali. Qualora ci siano persone informate sui fatti che volessero fornire informazioni in modo anonimo possono utilizzare la mail crittografata del whistleblower.

L'articolo Un Threat Actors pubblica 1 Milione di Record di Google nelle underground proviene da il blog della sicurezza informatica.

When you ask a Hackaday crowd to design a business card, you should expect to be surprised by what you get. But still, we were surprised by the breadth of entries! Our judges wracked their brains to pick their top ten, and then we compared notes, and three projects rose to the top, but honestly the top ten could have all won. It was a tight field. But only three of the entries get to take home the $150 DigiKey gift certificates, so without further ado…

Blinkencard – Pocket Altair 8800

[ajlitt] built a full retrocomputer, and a slick looking one to boot, in the size of a business card. Of course, you could run an Altair 8800 emulator on your cell phone, but without the entry buttons and real-live blinkenlights, it just wouldn’t be the same. What our judges loved most about this build was the use of an FPGA and and ESP32, for IO and storage, the reverse-mounted front PCB that doubles as a faceplate, and of course the nice 3DP bezel that hides the bodge wires from view.

BetaBoard – Tiny Particle Physics Lab

So you might have thought someone would put a retrocomputer on a business card, but a working radiation detector was not on our radar. [Tim – DJ8TK]’s entry makes use of not one, but six BPW34 PIN photodiodes, which have the benefit of being well studied in the hacker radiation detection scene. This project took a ton of design work, and our judges thought that the documentation along the way were as good as any physics lecture.

Brushless Motor and Driver Business Card Kit

And speaking of educational business card demos, [Andy Geppert]’s motor driver card not only teaches you how to wind your own coils and make a simple stepper motor, but also how to drive it. While [Andy] admits that the stepper motor design could use a few more poles for smooth operation, he also broke out the coil driver so that you can experiment by driving more professional brushless DC motors if you have them on hand. It’s a great demo, and being in a business card form factor, you can always have one on hand.

Honorable Mentions

As always, we have more awesome projects than we have prizes, so we thought we’d call out some standouts.

• Wafer Thin: [Chinchilla Optional] wowed us with this amazing dead-bug style QR code made out of LEDs. You know the card is thin when the LEDs are the thickest part. [erich.styger] contributed these RFID tag cards, beautifully laser-etched and made of 1 mm thick veneer. And bridging the Utility and Wafer Thin categories, [Maave]’s credit-card sized door entry tool needs to be thin if it’s going to work. Get this cut out of thin steel, and you’ll never get locked out again.
• Aesthetics: [BLANCHARD Jordan]’s Weather Card is cool on many fronts, but the resulting circuit sculpture combining the solar panel and the e-paper really won over our judges eyes with its understated form-follows-function beauty. On the opposite end of the spectrum, [Will Fox]’s Foxie CardClock 2.0 goes overboard with the color LEDs, and it looks awesome.

• Madman Muntz: Earl “Madman” Muntz was famous for cutting corners by removing parts until the thing broke, and we had a couple standout ultra-minimalist entries. [Adam Billingsley]’s CH32V003 Business Card targeted a $1 price tag, and this USB-capable, capacitive-touch card pulls out all the stops to get at least in the ballpark. Amazing. [Lincoln Uehara] cut corners by getting rid of the PCB entirely, and this makes his Back-to-basics paper business card friendly for younger builders too.
• Fun and Games: A business card with a working 4×4 tic-tac-toe game? [Esc]’s entry does double duty as a game and PCB design tutorial. Whether or not you should base your choice of a partner on skin resistance alone, [Un Kyu Lee]’s Doctor Love is a hilarious device, and background story. And finally, [Eontronics]’s RetroMedleyCard is an ambitious project to bring game emulation to your wallet. This project is insane, and it’s one to watch!
• Utilitarian: Our last category showcases useful cards of all sorts. From [Peter]’s Pi Pico MSP430 Debug Probe and programmable 4th Calculator to [Gangwa Labs]’s reflow hotplate (!), there’s no shortage of function that you can pack into your pockets.

Thanks to Everyone!

As always, we had more awesome entries than we have space to feature. You should go check out all the entries over on Hackaday.io. And thanks again to DigiKey for sponsoring these with prizes.