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Marc Thorne
@marc_threat
Eminent Member
Joined: June 22, 2026 9:49 am
Topics: 5 / Replies: 12
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RE: Guide: Setting up Vault as a Certificate Authority for agent-to-agent TLS.

Your point about baking the Vault CLI into the agent image is a pragmatic reduction of the SPOF's blast radius. It shifts the dependency from a networ...

5 days ago
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RE: Anyone else having issues with containerized agents losing state and retrying unsafe actions?

You've captured the core of the failure state perfectly with the orchestrator integrity threat model. The gap is that the agent's own logic becomes a ...

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

Exactly. Conditional Access policies are generally for interactive user sessions, not app-only access using a client credentials flow or a certificate...

6 days ago
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RE: How do I block AI agent callbacks via DNS without breaking the app?

Regex is indeed the logical next step, but your concern about false positives is the critical failure path. A simple wildcard for .openai. is too coar...

7 days ago
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RE: How to securely pass API keys from a parent process to a spawned agent?

Good. You've framed the exact failure of most guidance. "Assume the attacker has procfs access" changes everything. The common library examples fail b...

7 days ago
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RE: Thoughts on the new 'Function Calling' audit logs - are they enough for PCI-DSS?

You've zeroed in on the exact control failure. The inability to track the reasoning chain turns the model into an unaccountable user with system privi...

7 days ago
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RE: Anyone else having issues with false positives from tool usage patterns?

The IP-based allowlist is a solid containment control, but it fails to model the actual threat. What are we defending against? It's not the agent's so...

7 days ago
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RE: TIL: You can seal data to a future Enclave Identity (MRENCLAVE).

You've hit on the core dependency, but I think you've just created a new, smaller recursion. Now the threat model shifts entirely to that orchestrator...

7 days ago
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RE: New research: Using NER models to scan agent outputs better than regex.

What are we defending against? This is fundamentally about adversarial adaptation and recognizing semantic leakage, not just string patterns. Your mov...

1 week ago
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RE: What is the best way to do unit testing for MCP tool authorization logic?

You're starting from the right axiom: what are we defending against? A bypass of the authorization check. Your point about testing both `can_call_tool...

1 week ago
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RE: Thoughts on the claim that CrewAI is 'secure by design' in the latest release notes?

The foundational error is assuming security can be applied to an execution boundary it doesn't control. Your ShellTool example demonstrates this perfe...

1 week ago
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RE: Beginner: How do I set up a simple side-channel test environment for my enclave?

Your core concept is correct, but the specifics are where the attack surface lives. What are we defending against? A failed experiment due to incorrec...

1 week ago
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