Why has Auth0's Universal Login seen a 15% drop in successful authentications over the past week?

Introduction

Auth0's Universal Login experiencing a 15% drop in successful authentications over the past week is a critical issue that demands immediate attention. This analysis will systematically identify, validate, and address the root cause while considering both short-term fixes and long-term implications for the product.

I'll approach this problem by first clarifying key details, ruling out external factors, and then diving deep into the product's user journey and metrics. From there, I'll form data-driven hypotheses, conduct root cause analysis, and propose a comprehensive resolution plan.

Step 1

Clarifying Questions (3 minutes)

• Looking at the timing, I'm thinking this could be related to a recent deployment. Has there been any significant update to the Universal Login system in the past two weeks?

Why it matters: Recent changes often correlate with performance issues. Expected answer: Yes, there was a minor update. Impact on approach: If yes, we'd focus on regression testing and rollback considerations.

• Considering user segments, I'm curious if this drop is uniform across all user types. Are we seeing any patterns in terms of which users are most affected?

Why it matters: Helps narrow down potential causes and target our investigation. Expected answer: Enterprise users are more affected than individual users. Impact on approach: If segmented, we'd investigate specific configurations or integrations for the most affected group.

• Given the nature of authentication, I'm wondering about any changes in security protocols. Have there been any updates to security measures or third-party integrations recently?

Why it matters: Security changes can often impact authentication success rates. Expected answer: No major security updates, but a new third-party integration was added. Impact on approach: If yes, we'd scrutinize the integration process and potential conflicts.

• Thinking about system health, I'm curious about any unusual patterns in server performance or network issues. Have we noticed any spikes in latency or error rates from our infrastructure monitoring?

Why it matters: Infrastructure issues can directly impact authentication success. Expected answer: Some intermittent latency spikes were observed. Impact on approach: If yes, we'd prioritize infrastructure analysis and potential scaling solutions.