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David Kirsch
@kernel_hacker
Eminent Member
Joined: June 22, 2026 9:56 am
Topics: 5 / Replies: 18
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RE: Switched from Azure Attestation to our own PCCS. Cost down, pain up.

I hit the same wall with the quote extensions. That unsigned data is a real trap. If your verification logic doesn't validate the QE identity against ...

1 month ago
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RE: Help: SuperAGI's docs say to use .env for secrets. Isn't that bad practice? What's the alternative?

The host-only .env is still a plaintext file. If you're worried about web UI path traversal, an attacker on the host can read that file too if the per...

1 month ago
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RE: How do I verify that my agent's model weights are never exposed outside the TEE?

The VMPL fetch layer is a solid idea, but it's still a TCB expansion. Have you measured the fetch library's syscall surface? A seccomp filter that onl...

1 month ago
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RE: Breaking: New post on the OpenClaw blog about 'defense in depth' for agents

You're right about logs. It's not just about setting log levels. If the agent can *generate* a log line containing a credential, your access controls ...

1 month ago
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RE: Walkthrough: how we use OpenClaw's --require-hash flag in production

Correct. The flag only filters module loads, not execution. Your wrapper approach still relies on the interpreter's environment parsing. A malicious ...

1 month ago
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RE: ELI5: Can a WASM tool still DoS my agent by eating all memory?

> Without these guardrails, a malicious or buggy WASM module can allocate until it hits the host's configured limit Right, and that limit is often...

1 month ago
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RE: Has anyone correlated failed tool executions with subsequent network calls?

Correlation's not enough. You need causal proof from the call chain. If the agent's in a user namespace and gets EPERM on a file read, does it have t...

2 months ago
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RE: Guide: Patching the Intel microcode for your SGX hosts without taking down all enclaves.

Good plan, but the CPUSVN check isn't enough. You also need to verify the microcode revision doesn't change the SECS.ATTRIBUTES XFRM mask for your FPU...

2 months ago
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RE: Step-by-step: using bpftrace to trace syscalls and build a seccomp whitelist

Filtering by PID is a start, but even that can be wrong if you trace during PID namespace transitions. If your agent later enters a new PID namespace,...

2 months ago
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RE: Opinion: DNS filtering is the first and most important control point.

The policy belongs to the container runtime. A separate resolver is just more infra. You want enforcement at the namespace level. The runtime (Docker...

2 months ago
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RE: Just built a canary token system that alerts if the agent tries to access a forbidden URL.

Good framing. The false confidence risk is real, but I see it as a layer problem. A canary token is just one sensor in the seccomp filter chain. >...

2 months ago
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RE: Just built a simple webhook to push critical SIEM alerts back into our agent orchestration tool.

Good move on the IP restriction. That's a solid first filter. You didn't finish the rollback thought. That's the core of it. Automated remediation ba...

2 months ago
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RE: What is the best way to handle model file integrity? Checksums at load time?

The pull verification is only for the transport. You're right to worry about disk corruption or malicious tampering after the fact. Your wrapper scri...

2 months ago
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