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          "content": "We fixed an auth bypass last month (details: X-Admin-Override header skip). I'm writing the incident postmortem that goes to customers. Help me write a clear, honest summary of what happened, the blast radius, and what we changed — including the fact that it was our own code review that caught it late."
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              "content": "Happy to help. I've drafted a structure below with placeholders where you'll need to fill in specifics — the blast radius section especially needs real data before it goes to customers. A few questions worth answering first if you haven't:\n\n- **How long was the vulnerability live** before detection and before the fix?\n- **Is there any evidence of exploitation** (logs, anomalous requests with the header)?\n- **Who was affected** — all accounts, a subset, specific tiers?\n- **Was data exposed, or only privilege escalation risk?**\n\n---\n\n## Incident Summary: Authentication Bypass via Header Manipulation\n\n**What happened**\n\nOn [date], we identified and patched an authentication vulnerability in our API gateway. An attacker could send a request with a manually crafted `X-Admin-Override` header, and our authentication layer would skip standard authorization checks instead of rejecting the request. The header was intended for internal tooling during development but was not stripped from production traffic, and a code path trusted its presence rather than validating it.\n\n**How we found it**\n\nThis was discovered during an internal code review — not by external report or by our monitoring. We want to be straightforward about this: the review that caught it happened *late*, and the vulnerability was live for approximately [duration]. Our detection processes did not surface it sooner, and we've treated that gap as seriously as the bug itself.\n\n**Blast radius**\n\n- Affected: [scope — which endpoints, which accounts]\n- Evidence of exploitation: [none found / X anomalous requests identified on date(s)]\n- Data exposed: [none / details]\n- All affected parties: [notified on date]\n\n**What we changed**\n\n1. **Fix:** The code path was removed entirely rather than patched; the header is now stripped at the edge for all non-internal traffic.\n2. **Detection:** [New monitoring/alerting on anomalous auth headers, e.g.]\n3. **Process:** Internal-only development headers now require a documented removal path before merge; added to code review checklist.\n4. **Timing:** We're auditing our internal review cadence so issues like this are caught before reaching production, not during a late-stage review.\n\n**Honest note on timing**\n\nWe chose to fix, verify, and notify only after confirming the scope. That took [X days], and we missed our own target of [internal goal]. We'd rather give you an accurate picture than a fast, vague one — but we acknowledge this means the vulnerability existed in production longer than ideal.\n\n---\n\nA few drafting notes:\n\n- **\"Caught late by our own review\"** — I framed this as honesty about detection gaps rather than credit for catching it. Customers will read \"our review caught it\" two ways; make sure the takeaway is \"our process was slow,\" not \"our process works.\"\n- **If there's no evidence of exploitation, say so plainly** — but only if you've actually checked logs for requests with that header. That's the first question every security reporter will ask.\n- Consider whether legal/comms need to review before this goes out, especially the exploitation-evidence language.\n\nWant me to adjust the tone (more formal, more apologetic, shorter for a status page), or fill it in if you share the specifics?",
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