![Screenshot of media.ccc.de: I discovered mysterious hidden signals on a public radio channel (2013) [video]](https://hn.urlbox.com/shots/renders/2024/10/27/66c15a4f-431b-4437-aa6e-859e51fc03e7.jpg)
![Screenshot of media.ccc.de: Opencoil – appropriating inductive charging pads in the wild (2020) [video]](https://hn.urlbox.com/shots/renders/2025/12/18/62d28e56-4ab9-4428-83d0-26e9235b01c5.jpg)
First screen, captured .
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39th Chaos Communication Congress Videos(media.ccc.de)
366 points by Jommi | 72 comments
media.ccc.de listing of recorded talk videos from the 39th Chaos Communication Congress (39C3: Power Cycles), held in Hamburg in December 2025.
![Screenshot of media.ccc.de: From silicon to Darude – Sandstorm: breaking famous synthesizer DSPs [video]](https://hn.urlbox.com/shots/renders/2026/1/4/60fba897-179a-4597-bddf-357cf7c182db.jpg)
![Screenshot of media.ccc.de: Liberating Wi-Fi on the ESP32 [video]](https://hn.urlbox.com/shots/renders/2024/12/28/5a60ada3-d26f-4f9d-8f97-ec92dad9d2f3.jpg)
Liberating Wi-Fi on the ESP32 [video](media.ccc.de)
317 points by doener | 123 comments
Video recording of a 38C3 Chaos Communication Congress talk by Frostie314159 and Jasper Devreker on reverse engineering and liberating the ESP32's Wi-Fi stack.
![Screenshot of media.ccc.de: Escaping containment: A security analysis of FreeBSD jails [video]](https://hn.urlbox.com/shots/renders/2025/12/30/cefd445b-fa23-4117-bb05-bbd0a0ea1ee4.jpg)
![Screenshot of media.ccc.de: Hacking yourself a satellite – recovering BEESAT-1 [video]](https://hn.urlbox.com/shots/renders/2025/1/4/de0bf8d2-1992-4a41-ab98-793a89de04dd.jpg)