In this article, we cover three critical security best practices that one must follow if they are using SQL Server as their primary production database.
The security of SQL Server databases is something any organization would seldom take lightly. The databases belonging to an organization are not just a collection of important records, but also form useful assets for the company. If any organization or DBA gets careless regarding the security of databases or database backups, it can result in severe loss and damage to the company and its reputation. Which is not only bad for the company, but also for the DBA, who will be responsible for any such untoward happening. SQL Server comes with multiple in-built security features to allow users to provide all the necessary protection to their databases. If a DBA fails to make full use of the application and its security features, the database security is bound to suffer. Out of the multiple features and practices, SQL Server gives its users access to, given below are 3 of the best critical security practices for your SQL Server databases.
- Reduce Unwanted Users – One of the most common reasons behind your databases becoming insecure is that, there are lots of unwanted users who are allowed to access the databases and database backups. This makes the database and its backups vulnerable to many unwanted changes, made by unwanted users, thus putting at risk database integrity. These users might copy data to a remote server, delete backups and make many other unnecessary changes which can put the organization in a soup. Thus the DBA should always ensure that only those who need the access to databases and backups, are given the access, and any kind of unauthorized access is strictly prohibited.
- Choose Windows Authentication over SQL Authentication Mode – SQL Server users are advised to make use of Windows Authentication over SQL Server or Mixed Mode Authentication. Windows Authentication not only requires you to enter your windows account details, but also your SQL account logins, it also makes use of Active Directory, password policies and account groups. All this makes Windows Authentication more secure. Whereas the SQL Server login will only require your SQL account details to give you access to your databases. By using Windows Authentication, you can make your databases more secure, than you do by using SQL Server Authentication. If you are using the SQL Server Authentication, it is recommended to not make use of the System Administrator Account.
- Make Use of Encryption – This is one of the easiest and most preferred way of securing databases and database backups. By using encryption for your databases, you can not only limit the actions performed with the databases, but also limit who is able to access the databases. All of this combines to make your databases more secure and protected. No one will be able to copy data from an encrypted databases, thus there would be no scope of data being copied anywhere else. Encryption reduces instances of data theft and breach of security, thus becoming one of the best practice for database security.
Last but not the least always keep a sql repair tool handy to deal with crisis situations which arise out of the blue. It will act as the last line of defence against data loss.
Victor Simon is a data recovery expert in DataNumen, Inc., which is the world leader in data recovery technologies, including access repair and sql recovery software products. For more information visit www.datanumen.com