Best of 2025

The blog posts Hacker News loved most in 2025. 6,219 posts.

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699

Why is my CPU usage always 100%?

If you’re new to this series, I’ve been documenting the process I went through upgrading my old PXA166-based Chumby 8’s 2.6.28 Linux kernel to a modern 6.x version. Here are links to parts 1 , 2 , 3 , 4 , 5 , 6 , 7 , and 8 . At this point in the project, all of the main hardware peripherals were working great. I…

713

Reverse engineering Call of Duty anti-cheat

Interested in Anti-Cheat analysis? I highly recommend checking out Guided Hacking’s Anti-Cheat section. I’ve been reversing Black Ops Cold War for a while now, and I’ve finally decided to share my research regarding the user-mode anti-cheat inside the game. It’s not my intention to shame or promote cheating/bypassing…