@hackgnar

build, break, skate, hack, beer

 Chuck Norris' back yard
hackgnar.com
Joined June 2012
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  • Following345
  • Followers1.3K
83Media
Want to learn to hack all the Bluetooth Low Energy devices out there? Check out my new BLE CTF goo.gl/XioGzj which is geared to teach you all you need to get started in the world of BLE GATT hackery! Come check it out at this years BlackHat Arsenal!
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Some fun mini battery versions of BLE CTF I’m playing with.
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I saw a student in my workshop today who had a custom BLE CTF chip in his DEF CON badge! So cool! I got a picture but I can’t make out the full name of the creator. Zer0vul something. Love it 😍.
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Trying something new with my DEF CON BLE hacking workshop prep this year! Going to be fun! 🤞
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I’m excited to announce that we are growing our security team at Strike. We are looking for a Senior Product Security Engineer to join our fully remote team. If you are interested or know someone who is interested, let us know! lnkd.in/gEHjghEW

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ROFL 🤣... I was shopping around for some ESP32s microcontrollers and found this stock picture. "Let me put this ESP32 into your desktop computer?"
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I found this vids somewhere in 2019 and posted it. It is still one of my favorite interwebz vidz. I can set it on repeat and laugh for a solid 10 minutes. xitter.cf/hackgnar/status/124265…
ryan@hackgnar25 Mar 2020
No idea where this video came from, but I will watch it over and over for the next few months:
If you are coming to my DEF CON workshop this week and want a full-proof distro for haxor'n Bluetooths... Just bring a "Raspberry Pi Zero W" if you have one. I can flash your SD card with at nice distro you can ssh into over usb to do the challenges.
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I just tested it myself by doing all of the exercises from an IPad connected to a pi zero over usb. Seems legit 🧑‍⚖️
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I see a uniform pattern in most of my code repos. There seems to always be a spike in commits around the 7th month of the year. Gee, I wonder why there wasn’t one in 2020 though 🔍. I bet #DataScience #MachineLearning or #AI could shed some light 💡
If you’ve ever wanted to install BLE CTF or BLE CTF Infinity but have had compile issues or fear of compiling, the projects now have pre-compiled firmware you can flash. I’ve also added docker files for building if your into that. Instructions for both are in the repo docs.
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Why did I buy this book? Yesterday I randomly discovered that chapter 11 is pretty much all about my BLE CTF project ❤️
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If I fall off a ladder and die running cat5 cable in the dark what killed me?
49%Slow internet
51%Dark web
35 votes • Final results
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I lived btw... remembering cat5 cable color ordering is not like riding a bike.
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My zoom meeting will be a bit more fun now. I have video going from Webcam -> opencv-> yolo object recognition-> fake ndi cam-> virtual web cam -> zoom. I’m sitting at ~20 fps with only using cpu for yolo. With a bit of multithreading I should be able to get to > 30fps.
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btw, 20 FPS with CPU only on Yolo is a stretch. Im cheating here and just throwing a sample frame every 30 frames or so to yolo to parse. The other 29 frames just use the object boxes from 1 of 30 frames. This gives me "normal looking video" while still doing object detection
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I wonder if Apple and Google could turn off phone ble mac randomization, start sniffing and reporting all ble addresses each phone comes into proximity with and help track & report on various aspects of corvid propagation? Random thought of the week 🤔
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Lol, nm... there are various apps out there trying to do this now. Guess I was late to the party 🎈
No idea where this video came from, but I will watch it over and over for the next few months:
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March and April (at least) meetings will be online only. Get on IRC or the mailing list for the invite. Due to this medium we expect a big change in format and content, but at least we will power through it.
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Do you do “security”? Focus on incident response? Do the log analysis thing? If you don’t worship this icon as your mascot or meme inspiration, you should! #IrPsaForToday
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