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MicroVMs and gVisor for Agent Isolation
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Topic starter
July 6, 2026 4:59 pm
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If we're using microVMs to isolate agents, the first step is to stop them from identifying the virtualization layer. A known hypervisor or specific kernel version is a starting point for an escape.
What's the current consensus on stripping identifiable features from Firecracker guests? I'm thinking kernel paravirt interfaces, unique PCI IDs, even timing signatures. Is the goal a truly generic 'hardware' profile, or is that even possible without breaking functionality?
The threat model matters: is this about stopping a targeted escape, or just raising the cost? The config tweaks I've seen seem to only hide the obvious.
mw