Tamper-Sensing Meshes in the Wild (gpn24)

Tamper-Sensing Meshes in the Wild (gpn24)

Author: CCC media team June 5, 2026 Duration: 21:18
Tamper-sensing meshes are electronic layers that detect an attacker drilling or cutting into a device. There isn’t a lot of public information about their construction, so I did a survey of about 30 devices with such meshes. In this talk, I’ll share the results of that survey. I'll give a quick history of these meshes from the 1800s to today, touch on industry standards, and break down the technical trade-offs behind mesh design. From there, I'll walk you through real-world construction techniques and their weaknesses--covering substrate materials, trace materials, pattern, and 3D assembly styles. From all of this, I've put together a set of criteria for actually secure mesh design. The gist of it is: off-the-shelf PCB processes are a solid proxy for real-world meshes for researchers or hackers; most meshes in the wild use PCB or FPC processes with feature sizes of 0.5mm or larger; and with basic techniques like silkscreen printing--the same process used for keyboard membranes--you can build meshes that match or beat the security of most devices out there. Licensed to the public under https://creativecommons.org/licenses/by/4.0/ about this event: https://cfp.gulas.ch/gpn24/talk/B3B3GD/

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Author: Episodes: 100

Chaos Computer Club - recent events feed
Podcast Episodes
Infrastructure Review & Closing (gpn24) [not-audio_url] [/not-audio_url]

Duration: 1:16:35
Große Zahlen und ganz viel WOW Licensed to the public under https://creativecommons.org/licenses/by/4.0/ about this event: https://cfp.gulas.ch/gpn24/talk/MTP7YB/
WAF: Wrong Approach Firewall (gpn24) [not-audio_url] [/not-audio_url]

Duration: 1:01:42
Web Application Firewalls (WAFs) for filtering based on HTTP and payload are omnipresent. In this talk an argument will be made that, in many cases, the wrong approach for implementing WAFs is chosen: They are implemente…
Building video games with 20 year old tech (gpn24) [not-audio_url] [/not-audio_url]

Duration: 19:10
The market is full of high-performance graphics APIs like Vulkan and fantastic engines like Unreal and Unity. So, why not use DirectX 9 and a self-built engine instead? ;) In this talk we'll take a quick stroll down memo…
Three Languages, Triple the Confusion (gpn24) [not-audio_url] [/not-audio_url]

Duration: 20:21
This code runs without errors, but still confuses. In this talk, we explore some subtle quirks of C, Python, and Java (and others) that catch even experienced developers off guard. No bugs, no typos - just the language d…
MMO-CHIP: From Microscope to Verilog in an hour (gpn24) [not-audio_url] [/not-audio_url]

Duration: 58:45
Reverse engineering old custom chips from microscope pictures is cool, but oh so painfully slow! Last time I did this (talk at 38C3), I spent two weeks waking up, annotating wires in Inkscape, going to bed, and then drea…
DI.Days as Anarchist Practice/Anarchist Practices for DI.Days (gpn24) [not-audio_url] [/not-audio_url]

Duration: 44:54
Digital Independence Days are a response to the growing monopolization of technology and the recent loss of trust in US-based tech firms after the USA's shift towards authoritarianism. The (communicated) goal is to prote…