Essay

Post-Incident Root Cause and Remediation Plan for an LLM Feature Release

You are the product owner for an internal LLM assistant used by customer-support agents. Two weeks after launching a new “Draft Reply” feature, three issues are reported: (1) the assistant occasionally produces more helpful, warmer replies for customers with “Western-sounding” names than for customers with other names, even when the problem description is identical; (2) in a few chats, the assistant outputs snippets that appear to match real customer addresses and order numbers; and (3) a user successfully prompted the assistant to provide step-by-step instructions for bypassing a competitor’s paywall, despite a policy that it should refuse harmful or illegal requests.

Write a post-incident analysis and remediation plan that explains how these three failures could plausibly share common causes in the training data collection and model behavior, and propose a prioritized set of changes you would make across (a) data sourcing/curation, (b) privacy protections, and (c) alignment/safety behavior (including refusal handling). Your answer must explicitly discuss tradeoffs (e.g., utility vs. safety, data diversity vs. privacy risk, refusal strictness vs. user productivity) and how you would validate that the fixes worked without introducing new risks.

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Updated 2026-02-06

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