I have my site build from a company. I read about website vulnerabilities on the internet and i did some test on my site. It throws these errors.
QueryString key:TutorialId was expected to be of type System.Int64 but was not.
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server).
I think my site is vulnerable to sql injection attack. What do you say?