hi @eason_lx This is not a known issue. Most likely the usage comes from your account. Have you shared the account access with others?
To stop unwanted access, go to Dashboard > Settings > Active Sessions and revoke access to all sessions? That will prevent any other usage of your account.
Additionally please check if you have some Cursor API Keys setup in Dashboard > Integrations that may be using your plan.
Thank you for your reply. First of all, my account access has not been shared with anyone, and I have checked that there are no Cursor API Keys configured in Integrations. I will now revoke access to all sessions and see if everything works normally afterwards.