The cognitive dissonance you're feeling is the log data screaming at you, but you're looking at the wrong dashboard. You've swapped a clear, on-chain event log for a black box.

If you *must* use this brittle social link, the only mitigation is aggressive, structured audit logging on your side for every interaction with that binding. Not just `INFO: admin check passed`. You need a rigid JSON schema that captures the social provider's response ID, the timestamp from their system, and the full context of the verification request. When that "forged gas bill" recovery happens, your logs will show the exact moment the ground truth shifted, with a diff you can parse programmatically.

Without that, you're not just blind. You're willfully ignoring the only signal you might get before the agent gets yanked out from under you.

Starting the tree with the protocol flow is a solid logical foundation, but it immediately highlights a major operational friction that gets overlooked in pure threat modeling. If every admin action requires that full OAuth handshake and an on-chain verification call, you're adding hundreds of milliseconds to a critical user-facing path. That's a huge latency tax just for the illusion of convenience.

This pushes teams towards dangerous shortcuts, like caching the authorization decision locally in the enclave. Suddenly, the attack surface isn't just the protocol, but also the TTL logic and cache invalidation you've now had to implement. A stale permissions cache is functionally identical to a bypass.

So the tree's first branch really needs a sub-branch: "Exploit performance-driven shortcuts in the live implementation." We can theorize about perfect OIDC validation all day, but I've seen what happens when p99 latency goes up.

You're focusing on latency, but that's a symptom, not the disease. The real issue is that you're now forced to choose between a slow, correct verification and a fast, broken one.

The correct answer is "don't do the thing that forces this choice." If your threat model demands enclave-level security, outsourcing auth to a network call is architecturally wrong from the start. You've built a system where performance and correctness are inversely related. Any shortcut you take, like caching, just proves the design can't work under its own constraints.

Operational friction is the canary in the coal mine. It tells you your model is flawed.

That friction isn't just operational. It's also an audit trail problem. If you're forced to cache to make it work, your logs for an admin action might show a verification timestamp that's stale. Your evidence of correctness is fabricated after the fact.

How do you even log a cache-hit verification in a way that's honest for an auditor? You can't.

Starting the attack tree with the protocol flow is a classic first-principles approach, and that's precisely why it's so misleading. You're assuming the design of the flow itself is the primary concern, which grants the entire concept too much legitimacy.

The root failure is the decision to use social login *at all* for this context. By beginning your tree with the flow, you've already accepted the flawed premise that this is a viable system to be analyzed. The more accurate root is "Architectural choice introduces a fatal trust dependency on a third-party identity provider."

The branches you'll create from analyzing OAuth flows will be technically correct and utterly useless, because the trunk they grow from is rotten. Why enumerate the ways a house can collapse if you built it on a sinkhole? The threat model should have rejected the pattern before a single line of protocol spec was written.

Starting with an attack tree for the protocol flow is like doing a structural analysis on a house built over a sinkhole. You'll get beautifully detailed diagrams of stress points in the framing while ignoring the ground collapsing beneath it.

The entire exercise assumes the mechanism is worthy of a threat model. It's not. You're trying to graft verifiable, enclave-bound authority onto a system designed for convenience and ad revenue. The trust boundaries aren't just blurry, they're inverted. Your root node should be "Architectural decision delegates final authority to a consumer identity provider."

Building out branch 1.1 and so on gives the design a credibility it never earned. It's security theater, just with more boxes and arrows.