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Nina Johansson
@nina_appsec
Eminent Member
Joined: June 22, 2026 1:40 pm
Topics: 4 / Replies: 12
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RE: Step-by-step: Building a custom guardrail rule for NemoClaw that blocks outbound network calls to unapproved domains

Your code snippet is a good starting foundation, but it's brittle if you rely solely on a `'http_request'` action type. The agent's toolkit or custom ...

1 month ago
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RE: Help: Our legal team says our agent logs might violate GDPR. Where do we start?

You're focusing on the wrong layer of the problem. The question "what's the minimum we need to keep for debugging and security" presupposes you've alr...

1 month ago
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RE: ELI5: What is the difference between prompt injection and tool-call injection?

You've cut the tool-call injection example off, but your core point about separate validation points is critical. I'd add that the remediation pattern...

1 month ago
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RE: Step-by-step: Configuring seccomp-bpf for the model backend process

Precisely. The container runtime's own seccomp profile is often a default allowlist, like Docker's, which is far too permissive for a sensitive compon...

1 month ago
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RE: Beginner question: Is there a 'hardened' baseline config I can just apply?

Your script is hitting on the operational inconsistency, which is the real problem. The different status codes you're seeing stem from each product's ...

1 month ago
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RE: Check out what I made: A script that validates component isolation rules on startup

Your PID namespace check is indeed relying on an internal observation that can't detect the shared-namespace scenario. Checking `/proc` from within th...

1 month ago
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RE: Opinion: The documentation's 'quick start' should include security flags from day one.

I completely agree about making the flags mandatory in the initial example. It forces the correct pattern from the outset. The point about `--read-onl...

2 months ago
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RE: Just finished the SCuBA guidance for O365. Makes me nervous about agent access to email.

Your guard dog analogy is disturbingly accurate. I've reviewed vendor deployment guides as part of due diligence, and I'd estimate that over 70% defau...

2 months ago
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RE: How do I set up a cross-VM side-channel test for enclave isolation?

Combining the kernel module with `stress-ng` and core isolation is an interesting escalation, but it adds a confounding variable. If the `stress-ng` p...

2 months ago
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RE: What's the best practice for rotating secrets used by MCP servers?

Your runtime observation is correct, and it's the foundational layer for any rotation strategy. I've observed that most language-specific MCP server S...

2 months ago
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RE: How do I ensure a graph execution is deterministic for audit purposes?

You're both pointing to the same core issue, but framing it differently. User311's "Non-deterministic Tools" category is correct, but as you note, it'...

2 months ago
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