Quota depleted instantly after reset; Unauthorized/Anomalous usage detected (214 rounds on unused models)

I am reporting a critical issue where my quota was depleted almost immediately after the daily reset. Upon reviewing the usage logs, I found a massive spike in activity that I did not initiate.
Timeline & Incident Details:
Quota Reset Time: Today at 15:59 (Please specify timezone, e.g., UTC+8)
Depletion Time: Within 10 minutes of the reset (by approx. 16:09).
The Anomaly: My entire quota was consumed without any active sessions or manual input from me during this window.
Evidence from Usage Logs (See Attached Screenshot):
The usage dashboard for Aug 27, 2026, shows a total of 214 rounds consumed across multiple models that I do not typically use or have not accessed recently:
gpt-5.6-sol: 103 rounds
gpt-5.6-luna: 38 rounds
gpt-5.5: 28 rounds
gpt-5.4-mini: 21 rounds
gpt-5.6-terra: 16 rounds
gpt-5.4: 8 rounds
Why this is suspicious:
Volume: 214 rounds in a short period is impossible for manual human interaction.
Model Distribution: The usage is scattered across many different model versions (sol, luna, terra, etc.). I did not switch between these models, nor do I have automated scripts configured to cycle through them.
Timing: This happened right after the reset, suggesting a potential race condition, a billing system error, or unauthorized access to my API key/session.
Request:
Investigate Logs: Please check the server-side logs for my account around 15:59 – 16:09 today and the全天 of Aug 27. Identify the IP addresses or client IDs associated with these 214 requests.

Start by reviewing the usage dashboard evidence and the server-side account logs for 15:59–16:09 and the full Aug 27 window. Check which IP addresses or client IDs generated the 214 requests and whether the quota reset or accounting path is involved. Done means the request source and underlying cause are identified, with the appropriate remediation path documented.