So it seems that the DEF CON badge contains the new RP2350 chip that is in the recently announced Raspberry Pi Pico 2. Among other improvements and goodies, this thing has two Arm Cortex-M33 cores and two RISC-V cores.
Know what else is super cool? They announced at $10,000 bug bounty for the first confirmed break of the newly introduced signed boot process AND partnered with two vendors to make products that make abusing the security on these devices easier!
As i understand it, one of the vendors, Hextree, will be in the Embedded Systems Village along with some Rasp Pi folks.
Release announcement: https://www.raspberrypi.com/news/raspberry-pi-pico-2-our-new-5-microcontroller-board-on-sale-now/
Bug bounty details: https://github.com/raspberrypi/rp2350_hacking_challenge
GitHub - raspberrypi/rp2350_hacking_challenge
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