Microsoft SQL Server — Default Password
Default username and password for the Microsoft SQL Server: sa / (blank). Learn how to log in and how to change the default credentials.
The 'sa' account password is set during mixed-mode setup; blank sa was possible on legacy MSDE/Express.
| Username | Password | Access | Version / firmware | Notes |
|---|---|---|---|---|
sa | (blank / none) | Database | — | Blank sa on legacy MSDE installs |
sa | (blank) | Web UI | 7 | Admin |
- Default port
- what else runs on TCP port 1433
- Source
- official docs
Responsible use
This database lists publicly documented default credentials so administrators can find and change them. Only use these on systems you own or are authorized to test.