RunSybil tested Opus 4.8 against Nintendo 64's Mario Golf, detailing what the AI failed to exploit in closed-source code
A security researcher performed a speedrun for the evaluation.
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@sshell_ did a fantastic job speedrunning this target and the writeup highlights something that we felt was missing from the broader conversation: what do AI-powered hacking capabilities mean for closed source security
Ariel Herbert-Voss@adversarielInspired by Mythos finding 20-year old bugs in open source projects, we pointed Opus 4.8 at an esteemed 20 year old closed source target: 1999 Mario Golf on N64
1:43 AM · May 29, 2026 · 2.9K Views
1:43 AM · May 29, 2026 · 274 Views
QUOTE POST#795Ariel Herbert-Voss@ADVERSARIEL
#795Ariel Herbert-Voss@ADVERSARIELInspired by Mythos finding 20-year old bugs in open source projects, we pointed Opus 4.8 at an esteemed 20 year old closed source target: 1999 Mario Golf on N64
Sybil@runsybilwe got early access to Opus 4.8 and used it to hack a Nintendo 64 game you forgot about. here's what it didn't find: 1/
12:31 AM · May 29, 2026 · 24.8K Views
1:43 AM · May 29, 2026 · 2.9K Views