Medium

David Lee

Pinned

David Lee

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Jul 29

Stop Reading the Code

An agent just wrote three hundred lines in forty seconds. You open the diff, start reading line by line, and somewhere around line ninety…

Stop Reading the Code

Pinned

David Lee

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Jun 8

I Disabled IPv6 on My Home Router and My Network Is Fast Again

IPv6 is technically correct, which is the worst kind of correct and whether we should bother fixing things that mostly sort of work.

I Disabled IPv6 on My Home Router and My Network Is Fast Again

Pinned

David Lee

·

Jun 20

I Hid an Entire Website Inside a Favicon, So Now I’m Worried About Your Browser

What happens when the smallest, most-ignored file on the web turns out to be a smuggling container.

I Hid an Entire Website Inside a Favicon, So Now I’m Worried About Your Browser

Pinned

David Lee

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Apr 3

LinkedIn Has Been Reading Your Browser for Years, and Nobody Noticed

How a professional network quietly built one of the most invasive browser surveillance systems ever documented, using code your browser…

LinkedIn Has Been Reading Your Browser for Years, and Nobody Noticed

Pinned

David Lee

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Mar 18

The Rules NASA Uses to Write Code That Can’t Fail. Your AI Tools Break All of Them.

In 2006, a NASA engineer wrote ten rules for writing code where lives depended on correctness. They still apply. And they’re more urgent…

The Rules NASA Uses to Write Code That Can’t Fail. Your AI Tools Break All of Them.

David Lee

·

6h ago

I Never Understood a System Until I Broke It

I turned the classic computer science textbooks into 20 free, playable labs, because nobody ever learned how a system works by looking at a…

I Never Understood a System Until I Broke It

David Lee

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5d ago

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA and Root Access

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA and Root Access

David Lee

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6d ago

Your SQLite Database on a Network Drive Is a Ticking Time Bomb

SQLite is having a moment, and honestly, it deserves it. It’s fast, free, and the whole database lives in a single file. For a lot of indie…

Your SQLite Database on a Network Drive Is a Ticking Time Bomb

David Lee

·

Nov 6

It Signed Its Own Permission Slip: How Postman Let Itself Into Your AI Agents

1. Mail for someone who doesn’t live here

It Signed Its Own Permission Slip: How Postman Let Itself Into Your AI Agents

David Lee

·

Oct 30

Ricin, Fentanyl, Dirty Bombs: The New Way to Hide Code From AI.

A bot-check script hides behind ricin, fentanyl and dirty bomb function names. The code is harmless. The target is your AI’s safety filter.

Ricin, Fentanyl, Dirty Bombs: The New Way to Hide Code From AI.

David Lee

David Lee

stay safe: crimewatches.com 🦉 interactive labs: leestack.dev 🦩 write in depth: leestackdev.substack.com 🦬 email: david@leestack.dev 🦦

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