Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
A side-by-side comparison of gVisor and Firecracker for sandboxing untrusted code in 2026, covering security model, performance, and operational complexity.
A threat model for sandbox escapes in Model Context Protocol servers, mapping attack surfaces from tool execution environments to host processes and shared state.
If your agent can execute code, something it reads from the internet can execute code. Pick your sandbox before the agent picks one for you.
A technical look at WASI Preview 2, the component model, and capability-based isolation for running untrusted code inside supply chain tooling.
Running an open-weight model inside an enterprise perimeter seems safer than calling a hosted API. It is, and it isn't. The sandboxing patterns that actually produce the safety properties.
Kata wraps each pod in a lightweight VM. That is a real security boundary. It is also one that comes with real costs and real caveats.
gVisor intercepts syscalls in userspace and implements a minimal kernel in Go. It is a genuinely different approach, with genuinely different trade-offs.
Your container runtime determines the strength of your isolation boundary. Here is an honest comparison of runc, gVisor, Kata Containers, and Firecracker from a security perspective.
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