📢Outage alert📢 Our Open edX LMSes at p.ost2.fyi and beta.ost2.fyi will be taken down tomorrow (June 12th) for upgrade (so as to not cause any course completion progress loss while the update is in flight.)

We wanted to point out specifically the update to the System Security Learning Path that the excellent low level engineer & researcher Satoshi Tanda @standa_t has agreed to create our long-desired 'Architecture 3001: Intel Virtual Machine Extensions (VMX)' class!

📢Call for beta testers! (Round 2)📢 The "Architecture 1901: From zero to QEMU - A Gentle introduction to emulators from the ground up!" course by Antonio Nappa @jeppojeps / @fuzzsociety_org will begin May 20th. Sign up here: forms.gle/rB4mtU4BQtPo7utK8 This class has received a bunch of revisions based on student feedback! This course explores the fascinating world of emulation, guiding learners from the fundamentals of CPU design to the internals of QEMU and advanced instrumentation techniques.
You will start by understanding what emulation truly means—how software can imitate hardware—and progressively build your own 8-bit CPU emulator in Python (SimpleProc-8), extend it with interrupts, I/O, and MMIO, and finally instrument real-world emulators like QEMU.
The course combines hands-on labs, in-browser exercises, and conceptual lectures to bridge theory and practice, preparing students to tackle topics such as system emulation, hardware-assisted execution, and fuzzing of embedded targets. By the end, you’ll not only understand how emulators work—you’ll be able to build, modify, and analyze them for research, debugging, and vulnerability discovery.