This. The German government issues electronic IDs which can provide proof of age in a privacy-saving way, but I've never seen that being used in the wild.

Hewlett Packard had a lifetime warranty on their network gear back in the day.

So, do you like this? I do.

These 0.21/day are MPESA transaction fees. I stumbled upon that, too.

Well, to get started you could buy one of these:

https://www.reiner-sct.com/en/produkt/reiner-sct-authenticat...

… and then decide whether you really want to get into electronics development.

Is there an exploit? I've always wanted to explore the inner workings of my car's computer system, but I don't know how.

I recently read "The car hacker's handbook". It seemed to explain the basics very well and pointed me to all the necessary software and hardware to get started.

It is an interesting topic for sure.

That book looks very promising. Thanks a bunch!

Look up OBD-II.

The cars I know lock their doors automatically when they go at a certain speed (e. g. mine does at 20 km/h). Doesn't yours?

It does. But that isn't what I want it to do. I want to manually lock the doors as soon as I close my driver side door.

Does it work better when you use the key fob from inside the car? I would expect that because they surely tested a "unlocked accidentally and locked again right away" kind of scenario.

At least on ours, it tries to maintain the invariant that all doors lock at once (for aesthetics?), so you cannot lock anything if any door is open. It also likes to auto-unlock, but not auto-lock when you’re outside the car.

If two people lock it at the same time, it locks, then unlocks.

The smart lock stuff on it is even worse. I didn’t think it was possible to screw up car door locks so badly, even knowing Tesla’s implementation burns people to death sometimes.

Maybe it's intended to help with calculations. For comparison, the German BBK recommends a emergency stock to last ten days.

Amazing! The DTMF sounds look like the pins on the barrel of a music box. I am intrigued, I wouldn't ever have pictured them like that.

Thank you for the article! I found the "I understand computers and therefore the world" in the beginning a bit pretentious, but after reading the rest anyway, it doesn't anymore. I'd summarize the piece as:

"The hacker mindset comes with powerful tools: The urge to figure stuff out, the creativity to use it in unusual ways and the passion to share knowledge. Let's use it to make the world a better place. Start a company and gather allies. If enough of us do this, we'll have an impact on the world."