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Editorial Team
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Asked: 2026-05-29T07:48:43+00:00

I am using C# and SMO to successfully detach and attach an SQL server

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I am using C# and SMO to successfully detach and attach an SQL server database.

I was wondering if it is possible to password protect the detached database? Preferably via C# other suggestions also welcome. I am not too familiar with SQL Users and permissions.

(Background: We use a transfer database to transfer information to offsite units without internet connections via contractors. These databases have sensitive information. We would like that the information not be accessed by a savvy contractor)

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  1. Editorial Team

    What you describe does not have anything to do with SQL Server / SMO or whatever – just encrypt the files you want to transfer with some password and a good algorithm (like AES256) and keep the password secret between you and the offsite unit. Use a new cryptographically strong password for every transfer (never use a password twice!).

    IF you want to verify that the file has not been tampered with create a digital signature for every encrypted file you transfer (use an asymmetric algorithm for that like RSA). you keep the private key a secret from everyone… for verification of the signature(s) the public key is sufficient – the public key can be known to the whole world without compromising your security.

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