Tobias Scharnowski

@ScepticCtf

Hardware-free embedded software fuzzing at fuzzware.io. Working on advancing embedded systems software security.

Joined April 2015

404 Following 2.2K Followers 172 Posts

Latest posts 5

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Tobias Scharnowski @ScepticCtf Aug 24

Our @BlackHatEvents USA slides and demo video are now available! We plugged into a Tesla Universal Wall Connector and showed how an attacker could walk out with a worm that crosses four vendors, with no human in the loop after launch.

Links and more info in comment

2:13

Tobias Scharnowski @ScepticCtf Aug 4

In Vegas for #BlackHatUSA @BlackHatEvents and #defcon. Let me know if you are here and want to catch up / meet. :-)

Our talk on rehosting-based fuzzing of the Tesla Universal Wall Connector will be on Thursday at 12:00: blackhat.com/us-26/briefing…

Tobias Scharnowski @ScepticCtf Jul 13

The hardwear.io NL trainings (16th - 18th November) are now live. You can register for ours here: hardwear.io/baseband-rever…. Spots can be limited due to room size restrictions.

hardwear.io Hardwear.io NL 2026 – Hardware Security Conference Attend Hardwear.io NL 2026 for top hardware security trainings, talks, CTFs, and networking in Amsterdam this November. Register today!

Tobias Scharnowski @ScepticCtf May 11

I will be at the Qualcomm Product Security Summit in San Diego this week. I will present how our team at fuzzware.io approached winning Master of Pwn at #pwn2own Tokyo this year.

Let me know if you are there and want to talk #firmware #security & #fuzzing

#qpss26

fuzzware.io Fuzzware | Hardware-Free Security Testing for Embedded Software Discover hidden vulnerabilities in embedded firmware with Fuzzware's automated, hardware-free fuzzing platform. Full-system testing for ARM Cortex devices without physical hardware.

Tobias Scharnowski @ScepticCtf Feb 10

A virtual iteration of our training on fuzzing custom embedded systems is coming up end of March.

One cool story about this: The participants of our training in 2024 exploited a bunch of devices at Pwn2Own Tokyo 2026!🔥

Details: ringzer0.training/countermeasure…