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Posts by Jaime Lightfoot

btw if you buy a device with a wireless component to it (bluetooth/wifi/etc), you can put the FCCID into fccid.io and (probably) find internal photos

The photo quality likely won't be good enough to get the component numbers but it's kind of a neat exercise to see what electronic innards looks like

1 year ago 1 0 0 0
LED Therapy: Intro to Hardware Hacking Using the Neutrogena Light Therapy Mask In the pre-Covid BeforeTime, my friend told me about this LED face mask she bought. The idea is that it lights up red and blue LEDs to treat your skin (I don’t know how effective it is, but that’s not...

here's a walkthrough of a similar-ish process on another product: jaimelightfoot.com/blog/led-the...

Starting with just camera photos and online research, then getting into needing a multimeter, and more specialized equipment from there

1 year ago 1 0 1 0

Oooh that game looks fun! I haven't played it before

Definitely worth trying out if you're up for it! and if you don't mind losing $X if you accidentally brick the device

1 year ago 0 0 1 0

you might already know the term "cyberdeck" but there's communities doing really cool similar projects under that term

If you do decide to try modifying this Merriam-Webster dictionary, I'm happy to help out, reverse engineering stuff like this is sorta my day job 🙂

1 year ago 2 0 1 0

if you want to do a similar project anyway, it would probably be easier to start from scratch (Adafruit and Sparkfruit have great software and hardware guides to go with their products) and try to squeeze the parts into an existing casing or 3D print something

1 year ago 2 0 1 0

If you're lucky that's finding part numbers on the components and matching it to datasheets/documentation to write new software, and have all of the hardware (voltage levels etc) be compatible.

If you aren't lucky it's a software reverse engineering effort and/or some hardware work

1 year ago 1 0 1 0

I think it'd be a lot of messing around. You'd have to put some reverse engineering effort into figuring out which protocol is in use (I2C/SPI/etc) and the message content, for both the screen and keyboard.

1 year ago 1 0 1 0

kinda love "Judy 0-Day" as a hacker name, lol

1 year ago 2 0 0 0
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last min trip to Japan (no regrets, it was awesome)

1 year ago 2 0 1 0

Knowledge is never knowing the answer. It’s knowing the territory.

1 year ago 2337 395 38 46

“You can resolve to live your life with integrity. Let your credo be this: Let the lie come into the world, let it even triumph. But not through me.”

—Alexander Solzhenitsyn

1 year ago 502 141 1 4

sorry if this weird coming from an internet rando, but I recently went through this with my own senior pup and just wanted to say I'm sorry, it's a terrible thing to go through 😞 she looks like a total sweetheart

1 year ago 1 0 1 0
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Developer creates endless Wikipedia feed to fight algorithm addiction WikiTok cures boredom in spare moments with wholesome swipe-up Wikipedia article discovery.

short-form video feeds but this time with more rabbit holes arstechnica.com/gadgets/2025...

1 year ago 1 0 0 0

this is a beautiful, exhausting story of community love and action

(gofundme at the end!)

1 year ago 10 5 1 0
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Comparing hobby PCB vendors An not-for-profit roundup of affordable PCB manufacturers. Originally published in 2023 and last updated in February 2025.

This is my #1 most-searched article, so I updated my earlier PCB vendor roundup with some new samples from 2025: lcamtuf.substack.com/p/comparing-...

1 year ago 9 3 3 0

fuck it, I'm pitching an op-ed.

"I'm a reliability expert who has championed testing in production for a decade. here's why I'm raising alarm bells about DOGE's meddling with DFS"

1 year ago 2706 368 61 12
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Brief break from hawking The Onion to tell everyone I just subscribed to Wired. Please support publications who do brave work right now.

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1 year ago 10588 1627 262 211

I think they use `U+200B` but I suppose you could do it with other non-visible characters too (and then look at it with a hex editor)

It's not really my area but there's even a way to encode text messages into documents via whitespace, "Steganographic Nature Of Whitespace": darkside.com.au/snow

1 year ago 1 0 0 0

Tesla/etc have caught people in the past using "whitespace watermarking", with variation in how many spaces are after a given period. There's a non-visible version of this too, with zero-width characters

1 year ago 4 0 1 0

social engineering people into following security policy but it's just me being Midwest Nice

1 year ago 2 0 0 0

on the other hand, shitty cybersecurity messaging gives me a huge advantage as a consultant

I show up and treat people with a normal level of social grace and that's enough to make them think I'm the nicest security person they've ever met (all my requests get implemented too)

1 year ago 2 0 1 0

I'm doing my required cybersecurity/phishing awareness training today and am struck how by negative it is

Maybe people would be more inclined to follow cybersecurity practices if we didn't make them feel like idiots or try to trick them all the time

1 year ago 1 0 1 0
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Blog: Level Up Your Open Source Karma (And Your Wallet) by Improving Security This blog post takes you through everything you need to know about the Patch Rewards Program, including our newly introduced focus on memory safety (including reward multipliers!), recently increased ...

if you are an open source maintainer, Google is launching a program where you get paid for security-improving pull requests. yeah, yeah, terms and conditions apply but check it out: bughunters.google.com/blog/5273064...

1 year ago 1 0 0 0
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Hacking Subaru: Tracking and Controlling Cars via the STARLINK Admin Panel On November 20, 2024, Shubham Shah and I discovered a security vulnerability in Subaru’s STARLINK admin panel that gave us unrestricted access to all vehicles and customer accounts in the United State...

being able to buy your mom a car, then finding a remote unlock vulnerability in it and getting it fixed is the car hacking dream. Congrats to @zlz.bsky.social on another great writeup: samcurry.net/hacking-subaru

1 year ago 1 0 0 0