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Security2026-08-12 · source-backed
Malte Ubl argues defenders hold a temporary edge because they can run stronger models than attackers, and that edge is closing (Vercel). K3 matches Sonnet 5 and beats Opus 4.8 on vulnerability discovery; asked to escape Vercel Sandbox it mapped attack surface, found privilege-escalation paths, built VM environments and wrote fuzzers on its own. No successful escape. He names Sol 5.6 on XHigh as today's best defensive model and says Vercel spends tens of thousands quarterly on deepsec reviews. They're opening the Sandbox egress firewall to the Hobby plan and planning a HackerOne program that covers researchers' AI costs.
Each link below shares sources, entities, or timing with this story.
Vercel released Sandbox / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Vercel released Sandbox); both cover Sandbox, Vercel, Vercel Sandbox; reported by the same outlet (vercel.com).
Vercel released Sandbox / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Vercel released Sandbox); both cover Opus, Sandbox, Vercel; overlapping topics (model, sandbox, vercel).
Linked by a graph relationship (Vercel released Sandbox); both cover Opus, Sonnet, Vercel; overlapping topics (cost, model).
Vercel released Sandbox / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Vercel released Sandbox); both cover Kimi K3, Vercel; reported by the same outlet (vercel.com).
Linked by a graph relationship (Vercel released Sandbox); both cover Vercel, Vercel Sandbox; reported by the same outlet (vercel.com).
Vercel released Sandbox / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Vercel released Sandbox); both cover Kimi K3, Sandbox; overlapping topics (attack, model, sandbox).
Vercel partners with Codex / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Vercel partners with Codex); both cover Opus, Sonnet; overlapping topics (beat, cost, model).
Vercel released Sandbox / Shared entity: Vercel / Same source domain / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Vercel released Sandbox); both cover Vercel; reported by the same outlet (vercel.com).