MongoDB default password & login
NoSQL document database. Out-of-the-box has NO authentication; first user is created via the localhost exception or db.createUser().
Use these credentials for the very first login to MongoDB only. The full vendor documentation linked below explains how to rotate them and harden the install.
Notes & recovery
Enable auth with: --auth flag or security.authorization: enabled in mongod.conf. MongoDB Atlas uses Atlas-managed users.
Official documentation →Change the default immediately
Anyone with internet access can try the published default on MongoDB. Set a strong, unique password the moment you finish first-time setup, ideally before exposing the service to your LAN.
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