But All that glitters is not gold
Posted: Mon Jan 27, 2025 9:05 am
We have seen that row-level security is enabled by calling a function every time a table is accessed. One or two readers have certainly had painful experiences with functions and large data queries. If the functions for row-level security are written suboptimally or used inappropriately, it is very easy to bring an otherwise fast system to a standstill. It is important to check beforehand whether, what and how exactly should be filtered. Every function call that can be prevented means a plus for system performance.
As mentioned at the beginning, row level security also requires security to consist of several layers in order to be able to store sensitive data safely. As a system administrator, it is possible to disable these security policies in order to subsequently disable filtering. It is also possible to extract information under certain circumstances, even if it is filtered out. Ultimately, such security features are rarely used in isolation, but usually in conjunction with other functions to make the entire system more secure.
Always Encrypted
The "principle of least privilege" [4] stipulates that a user (or administrator) should only be granted the rights or powers that are sufficient to bosnia and herzegovina telegram screening do his job. It is important for a database administrator to be able to maintain the system, but not to be able to see the data contents of the system.
In earlier versions of SQL Server, the data within the server was completely visible to a system administrator. This may still be OK for many companies. "We trust our employees. Why shouldn't they be able to do their work unhindered?" This trust is important and right. But what happens when the systems are outsourced? Either through outsourcing (which is becoming increasingly popular) or through the "new" solution, cloud computing. When employees are outsourced, many "security features" are lost. The "keys" to the systems are literally handed over; you take on the role of a passenger. With the cloud computing solution, you only have limited control over the systems. As the US government's attempt to get hold of data from the cloud by suing Microsoft [5] showed. Fortunately, the lawsuit was dismissed. But what can you do if Microsoft (or cloud service provider XY) is forced to hand over data?
As mentioned at the beginning, row level security also requires security to consist of several layers in order to be able to store sensitive data safely. As a system administrator, it is possible to disable these security policies in order to subsequently disable filtering. It is also possible to extract information under certain circumstances, even if it is filtered out. Ultimately, such security features are rarely used in isolation, but usually in conjunction with other functions to make the entire system more secure.
Always Encrypted
The "principle of least privilege" [4] stipulates that a user (or administrator) should only be granted the rights or powers that are sufficient to bosnia and herzegovina telegram screening do his job. It is important for a database administrator to be able to maintain the system, but not to be able to see the data contents of the system.
In earlier versions of SQL Server, the data within the server was completely visible to a system administrator. This may still be OK for many companies. "We trust our employees. Why shouldn't they be able to do their work unhindered?" This trust is important and right. But what happens when the systems are outsourced? Either through outsourcing (which is becoming increasingly popular) or through the "new" solution, cloud computing. When employees are outsourced, many "security features" are lost. The "keys" to the systems are literally handed over; you take on the role of a passenger. With the cloud computing solution, you only have limited control over the systems. As the US government's attempt to get hold of data from the cloud by suing Microsoft [5] showed. Fortunately, the lawsuit was dismissed. But what can you do if Microsoft (or cloud service provider XY) is forced to hand over data?