SQL Server is Microsoft’s database platform for storing and querying structured data such as customer records, finance tables, application logs, and ERP information. It uses SQL queries to read and update data, and it often sits behind business applications that depend on service accounts, connection strings, and tightly controlled permissions.
In cyber security, SQL Server matters because a compromise can expose large volumes of sensitive records or become a path into other systems. Attackers look for weak database passwords, leaked connection details, misconfigured backups, or exposed management ports. If they obtain SQL Server credentials, they may dump databases, alter records, or use the server to map internal services. Defenders reduce risk by limiting network exposure, using strong unique database credentials, encrypting backups, monitoring authentication events, and separating application, admin, and service accounts.