Microsoft SQL Server error code 18456 leads to a failed login attempt that could be due to an incorrect password entry. Usually, it occurs even though the username is approved.

Technical documentation for Microsoft SQL Server, tools such as SQL Server Management Studio (SSMS) , SQL Server Data Tools (SSDT) etc. - MicrosoftDocs/sql-docs ...

In SQL Server, you can encrypt your databases using the Transparent Data Encryption (TDE) feature. This feature encrypts the entire database, including data files, log files, and backup files.

CANNOT CONNECT TO SERVER\SQL. ADDITIONAL INFORMATION: LOGIN FAILED FOR USER SA. (MICROSOFT SQL SERVER, ERROR: 18456) BASARISIZ KIMLIK DOGRULAMASININ KESIN NEDENLERI,HATA DURUMU YARDIMIYLA ...