Sei individui sono stati arrestati dai Carabinieri del Nucleo Investigativo di Varese, accusati di aver sottratto dati e informazioni classificate da diverse “Banche Dati Strategiche Nazionali“.

Tra queste informazioni sensibili di Sdi, Serpico, e Inps, esfiltrare per scopi economici e personali. A quattro di loro è stato imposto l’arresto domiciliare, mentre altri due sono stati soggetti a misure interdittive.

L’inchiesta è condotta dai magistrati Francesco De Tommasi e Gianluca Prisco della Direzione Distrettuale Antimafia di Milano, sotto la supervisione del procuratore Marcello Viola, come confermato da un comunicato della Procura.

Si ipotizza che le informazioni siano state trafugate su commissione e poi vendute, includendo dati riservati riguardanti anche esponenti politici.

Gli indagati, destinatari delle misure cautelari, comprenderebbero ex membri delle forze dell’ordine, hacker e consulenti informatici.

Sembrerebbe che tutte le attività che venivano svolte dal gruppo erano fatte su commissione e tra queste c’erano anche degli esponenti politici Non ancora precisare.

Per sabato 26 ottobre è convocata una conferenza stampa alla quale parteciperà anche il procuratore nazionale antimafia e antiterrorismo, Giovanni Melillo.

L'articolo Ex membri delle Forze Dell’ordine Italiane Sottraggono Dati Strategici Nazionali proviene da il blog della sicurezza informatica.

Unless you spend all your time lounging on the sofa, you probably own at least one pair of shoes. But have you ever thought to make your own to improve some aspect of your life? YouTube channel Answer in Progress set out to do precisely that, but it didn’t quite work out.

When you (well, other people) get into running, it’s tempting to believe a lot of the shoe company hype and just drop hundreds of dollars on the latest ‘super shoe’ and hope that will help you break your target time. But do you actually need to buy into all this, or can you make something yourself? The project aimed to get the 5k time down significantly, at any cost, but primarily by cheating with technology. The team set out to look at the design process, given that there is indeed a fair amount of science to shoe design. Firstly, after a quick run, the main issues with some existing shoes were identified, specifically that there are a lot of pain points; feet hurt from all the impacts, and knees take a real pounding, too. That meant they needed to increase the sole cushioning. They felt that too much energy was wasted with the shoes not promoting forward motion as much as possible; feet tended to bounce upwards so that a rocker sole shape would help. Finally, laces and other upper sole features cause distraction and some comfort issues, so those can be deleted.
A thicker mid-sole allows for a rolled shape
The plan was to make a ‘sock’ shoe style, with an upper in one piece and stretchy enough to slip on without laces. The process started by wrapping the foot in cling film and then a few layers of duct tape to fix the shape. This was split down the top to extract the foot, open out the pattern, and transfer it to some nylon fabric. The outer profile was transferred and cut out with simple hand tools in a fashion that would allow the shape to be reconstructed as it was glued to a sole. It sounds simple, but it’s pretty fiddly work.

The latest running shoes use specialised rubber materials for the midsole. The solid foam wedge between the outer rubber and the inner sole cushions the foot. Those materials are only a few per cent ‘better’ than much more accessible foams that can be 3D printed. After sculpting a sole shape by hand using Blender, a friend 3D printed it. After that, the upper part was glued and ready for a test run. Which didn’t last long. It turned out that the lack of a stable heel counter (the bit around the back) that helps lock the heel in place meant the foot was too loose in the shoe, causing potential issues such as an ankle roll. That would be not good. A follow-up session with a sports-focused chiropodist demonstrated that all this was rather pointless before the fundamental issues of strength and fitness were addressed. So, whilst it was fun to see an attempt to beat the big boys at their own game, it sure isn’t easy to pull it off, especially if you can’t get off the sofa.

The invention of flexible 3D printing filaments spurred the development of a wide range of 3D-printed footwear, like these low-poly beauties. While we’re 3D printing shoes, we also need some lace locks. Finally, with winter approaching for us Northerners, perhaps it’s time to run off a pair of 3D-printed strap-on cleats.

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Thanks to [fluffy] for the tip!

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Whilst microwave plasmas are nothing new around here, we were curious to see what happens at 20x the power, and since YouTuber [Styropyro] had put out a new video, we couldn’t resist seeing where this was going. Clearly, as your bog standard microwave oven can only handle at most one kilowatt; the ‘oven’ needed a bit of an upgrade.
A 16 kW water-cooled magnetron. Why not over-drive it to 20 kW for fun?
Getting hold of bigger magnetrons is tricky, but as luck — or perhaps fate — would have it, a 16 kW, water-cooled beast became available on eBay thanks to a tip from a Discord user. It was odd but perhaps not surprising that this Hitatch H0915 magnetron was being sold as a ‘heat exchanger.’

[Styropyro] doesn’t go into much detail on how to supply the anode with its specified 16 kW at 9.5 kVDC, but the usual sketchy (well down-right terrifying) transformers in the background indicate that he had just what was needed kicking around the ‘shop. Obviously, since this is a [Styropyro] video, these sorts of practical things have been discussed before, so there is no need to waste precious time and get right on to blowing stuff up!

Some classic microwave tricks are shown, like boiling water in five seconds, cooking pickles (they really do scream at 20 kW) and the grape-induced plasma-in-a-jar. It was quite clear that at this power level, containing that angry-looking plasma was quite a challenge. If it was permitted to leak out for only a few seconds, it destroyed the mica waveguide cover and risked coupling into the magnetron and frying it. Many experiments followed, a lot of which seemed to involve the production of toxic brown-colored nitrogen dioxide fumes. It was definitely good to see him wearing a respirator for this reason alone!
Is it purple or is it indigo? Beauty is in the eye of the beholder!
The main star of the demonstration was the plasma-induced emissions of various metal elements, with the rare indigo and violet colors making an appearance once the right blend of materials was introduced into the glassware. Talking of glassware, we reckon he got through a whole kitchen’s worth. We lost count of the number of exploded beakers and smashed plates. Anyway, plasma science is fun science, but obviously, please don’t try any of this at home!

For those who didn’t take an ‘electron devices’ course at college, here’s a quick guide to how magnetrons work. Plasma physics is weird; here’s how the plasma grape experiment works. Finally, this old hack is a truly terrible idea. Really don’t do this.

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Even if you are relatively young, you can probably think back on what TV was like when you were a kid and then realize that TV today is completely different. Most people watch on-demand. Saturday morning cartoons are gone, and high-definition digital signals are the norm. Many of those changes are a direct result of the Internet, which, of course, changed just about everything. Ham radio is no different. The ham radio of today has only a hazy resemblance to the ham radio of the past. I should know. I’ve been a ham for 47 years.

You know the meme about “what people think I do?” You could easily do that for ham radio operators. (Oh wait, of course, someone has done it.) The perception that hams are using antique equipment and talking about their health problems all day is a stereotype. There are many hams, and while some of them use old gear and some of them might be a little obsessed with their doctor visits, that’s true for any group. It turns out there is no “typical” ham, but modern tech, globalization, and the Internet have all changed the hobby no matter what part of it you enjoy.

Radios

One of the biggest changes in the hobby has been in the radio end. Hams tend to use two kinds of gear: HF and VHF/UHF (that’s high frequency, very high frequency, and ultra-high frequency). HF gear is made to talk over long distances, while VHF/UHF gear is for talking around town. It used to be that a new radio was a luxury that many hams couldn’t afford. You made do with surplus gear or used equipment.

Globalization has made radios much less expensive, while technological advances have made them vastly more capable. It wasn’t long ago that a handy-talkie (what normal folks would call a walkie-talkie) would be a large purchase and not have many features. Import radios are now sophisticated, often using SDR technology, and so cheap that they are practically disposable. They are so cheap now that many hams have multiples that they issue to other hams during public service events.

Because these cheap ($20-$40) radios often use SDR, they can even be hacked. These radios aren’t typically the highest quality if you are used to repurposed commercial gear, but when you can replace the radio for $20, it hardly matters.

HF radios are a different story. Thanks to software-defined radio, superpowerful computers, and FPGAs, even relatively inexpensive HF radios have features that would have seemed like magic when I first got my license.
The ICOM IC-7300 is considered a “starter” radio!
While some hams like to build gear or use simple or older gear, modern transceivers, like the IC-7300 from Icom shown here, have incredible RF filtering done in software, spectrum analyzers, and scopes built in. The 7300, by the way, isn’t considered a “top of the line” radio by any means. But it has features that would have been a dream on a state of the art unit before the advent of DSP.

Having these kind of tools changes how you operate. In the old days, you’d tune around to see if you could hear anyone. Now, glancing at the screen will show you all the signals on a band and how strong they are. Touch one, and you tune it in immediately. Digital noise reduction is very helpful these days with so much interference, and, of course, you can control the whole thing from a PC if you want to.

The receivers are exceptional compared to what even a high-end radio would offer a few decades ago. Specialized filters used to be expensive and limited in options. Now, you can design any filter you want on the fly and it will be nearly perfect.

Granted, these radios aren’t in the impulse buy category like the handheld radios. Still, you can find them new for around $1,000 and used for less. There are also other similar radios for much less. Just as you can buy imported handheld VHF and UHF radios, there are imported HF radios that put out a lower wattage (20 watts vs 100 watts is typical). These still have plenty of features, and you can get them for about half the cost of the name-brand 100W rigs. [K4OGO] has a video (see below) about several popular radios in that price range and you’ll notice that many of them have similar displays.

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Digital Modes

Paradoxically, you might not need as hot a receiver, or as big of an antenna, or as much power as you might think. Hams have long known that voice communication is inefficient. Morse code could be the earliest form of digital radio communication, allowing a proficient operator to copy signals that would never make a voice contact. However, hams have also long used other digital modes, including TeleType, which is more convenient but less reliable than a good Morse code operator.

That changed with computer soundcards. Your computer can pull signals out of a hash that you would swear was nothing but noise. Modern protocols incorporate error detection and correction, retries, and sophisticated digital signal processing techniques to pull information from what appears to be nowhere.

What kind of sound card do you need? Almost any modern card will do it, but if you have the Icom IC-7300 pictured above, you don’t need one. It turns out, it is a sound card itself. When you plug it into a PC, it offers audio in and out for ham radio programs. It can even send IQ signals directly to the PC for common SDR programs to work with.

Some digital modes are conversational. You can use them like you might a radio-based chat room to talk to people you know or people you’ve just met. However, some modes are more specialized and optimized to make and confirm contact.

Computer Logging

There was a time when every ham had a log book — a notebook to write down contacts — and a stack of QSL cards. Operators would exchange cards in the mail to confirm contact with each other. Many of the cards were interesting, and collecting enough cards could earn an award (for example, working all 50 US states or over 100 foreign countries).

Things are different now. Many people use a computer to track their contacts. While you could just use a spreadsheet, there are many ways to log and — more importantly — share logs online.

The advantage is that when you make a contact and enter into the system, it can match your entry up with your partner’s entry and immediately confirm the contact. This isn’t perfect, because there are several systems people use, but it is possible to interoperate between them. No more waiting for the mail.

DX and Propagation

I mentioned that having a display of the entire ham band changes how you operate. But there is even more help out there. Many people enjoy working rare foreign stations or special event stations held at parks or historical locations. These days, if you hear a station like that on the air, you can report it on the Internet so other people can find them. In some cases, the operator will report themselves, even.
A real-time view of beacon reception across the globe.
Suppose you want to make contact with someone in Kenya because you haven’t done it, and you are working towards an award that counts how many countries you’ve contacted. Instead of searching endlessly, you can simply watch the Internet for when a station from that country appears. Then turn on your radio, use the digital tuning to go exactly to their frequency, and try your luck.

Of course, radio propagation isn’t foolproof. But you can use beacons to determine how propagation is near you. There are many tools to manipulate the beacon data to better understand radio conditions. In fact, if you use digital modes or Morse code, you can find out who’s hearing you on the Internet, which can be very useful.

Why Not You?

Some old hams say the Internet is ruining ham radio. I say it is changing ham radio just like it has changed virtually everything else. Some of those changes aren’t that drastic anyway. For years, people chasing awards, trying to work long distances, or participating in contests have very short contacts. You typically would exchange your name, location, and how strong your signal is and then make way for the next person to make contact. The digital mode FT8 automates all that. It is true that it isn’t very personal, but those kinds of contacts were never personal to start with.

What’s more is that you don’t have to use any of this if you don’t want to. I operate a lot of Morse code with no mechanical assistance. If I hear a big pileup, I might go look at the computer to see who has been spotted on that frequency. But I don’t have to. I could figure it out the old-fashioned way.

Hams work with advanced signal processing software, satellites, moon bounce, support communities, design antennas, foster school education, work during disasters, and push the envelope on microwave communication. No matter what your interests, there’s something you’ll enjoy doing. For many years now, you don’t even have to pass a test for Morse code, so if you didn’t want to learn the code, you don’t have to.

In many ways, hams were the original hackers, and you might be surprised by how many hackers you know who are hams already. I don’t know what ham radio will look like in the year 2100, but I know it will be pushing the limits of technology, somehow.

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With the 2024 Hackaday Supercon looming large on the horizon, Editors Elliot Williams and Tom Nardi start this episode off by talking about this year’s badge and its focus on modular add-ons. From there they’ll go over the results of a particularly challenging installment of What’s that Sound?, discuss a promising DIY lathe that utilizes 3D printed parts filled with concrete, and ponder what the implosion of Redbox means for all of their disc-dispensing machines that are still out in the wild.

You’ll also hear about custom macropads, lifting SMD pins, and how one hacker is making music with vintage electronics learning kits. Finally, they’ll reassure listeners that the shifting geopolitical landscape probably won’t mean the end of Hackaday.io anytime soon, and how some strategically placed pin headers can completely change how you approach designing your own PCBs.

Check out the links below if you want to follow along, and as always, tell us what you think about this episode in the comments!

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Download in DRM-free MP3.

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Episode 294 Show Notes:

News:

• The 2024 Hackaday Supercon SAO Badge Reveal

What’s that Sound?

• Congrats to [I can see the sounds] for guessing the HAARP.

Interesting Hacks of the Week:

• A 3D Printed, Open Source Lathe?
  
  • Precision CNC With Epoxy Granite
  • Experiments In Creating The Best Epoxy Granite

  
  

• Redbox Is Dead, But The Machines Are Kind Of Hanging On
  
  • Redbox hack reveals customer info. from 2K rentals – Ars Technica
  • Foone: “the unit I’ve got an image for has records going …” – digipres.club

  
  

• Libre Space Foundation Aims To Improve Satellite Tech
  
  • Flying The First Open Source Satellite
  • 32C3: So You Want To Build A Satellite?
  • Open Source CubeSats Ease The Pain Of Building Your Own
  • How To Build A CubeSat
  • SatNOGS – Global Network of Ground Stations

  
  

• Keeping Tabs On An Undergraduate Projects Lab’s Door Status
• DIY Air Bearings, No Machining Required
  
  • Learn 40 Years Of Mech Prototyping At Lightspeed
  • High-Precision Air Bearing CNC Lathe And Grinder

  
  

• I2C The Hard Way

Quick Hacks:

• Elliot’s Picks:
  
  • 3D Printed Tires, By The Numbers
  • Zero To Custom MacroPad In 37 Easy Steps
  • Make Your Own Remy The Rat This Halloween

  
  

• Tom’s Picks:
  
  • Give Your SMD Components A Lift
  • 75-In-One Music
  • Figuring Out The Most Efficient Way To Reuse Bags Of Desiccant

  
  

Can’t-Miss Articles:

• Will .IO Domain Names Survive A Geopolitical Rearrangement?
• Hacker Tactic: Building Blocks
  
  • Power Supply PCB Redesign

  
  

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