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Password security and penetration testing The overriding message here is that obscurity for security should not stand alone, and it must be complex, at every level. Security by obscurity will not hurt, but it cannot exist on its own. Each method or algorithm creates a more complex and secure whole. Of course, you want your most essential systems protected in the deepest layer.Īll security can be viewed as security through obscurity. If this layer is removed, then another, and another after that, exists. You begin with an outer layer that protects everything within. Multi-facet cyber securityĬybersecurity is only effective when its measures are stacked like a Russian Doll. If someone discovers the location, you have to dig up the stash, move it, and bury it again, which is significantly more work. If your password was discovered, you simply change the password, which you can do in seconds. Reacting to a security breach looks entirely different. It would be like burying the money under the Apple tree in a box with several locks on it. However, when we bring in password managers, it’s an additional layer of security. Password protection will often provide complex, obscure passwords because they cannot be guessed and are therefore more secure. However, it is actually a great methodology, just not to be used in isolation.

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Most software developers will laugh at how unsafe this can be. In short, yes! But not in isolation as a sole means of security Still, there is little to no protection should someone happen across it, especially since there are ways of crawling folders and files en masse. There isn’t anything identifiable about the information contained. Imagine storing all passwords in a location on your computer or cloud storage filed under something obscure such as documents > tax > E56AF The odds of anyone finding it are unlikely, but there is still a chance it could happen, and there is nothing you can do about it.Įxample: Our topic for a little while has been around password security so let’s use that as an example. It’s like hiding money under a tree in the woods.

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Denny.Obscurity for security is the art of storing important information in such a way that only you would know where or how to find it.

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And if possible do this without making the environment harder to manage, which is all that you are doing by changing the TCP port numbers.

Spend time doing things which will make the environment actually secure so that when the system is breached the data isn’t all lost. Pretending that hiding the servers and making them harder to find is making them more secure isn’t. Proper security requires understand user/business requirements and building a solution which will meet those requirements while building proper secure protections into the system so that if something does go wrong the exposure is limited. By changing the TCP port number you haven’t slowed them down at all. They are connecting to the web/app tier and just using whatever SQL Server connection information that the application has to get access to your database. If the attacker is using SQL injection then they don’t care what port the SQL Server is running on. You’ve slowed the attacker down by about 5-10 seconds, maybe. If it’s a decent port scanner it’ll tell them which port is SQL and what all the other open ports are so they’ll know which one to connect to. The ones that are open they’ll connect to.

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If not, they can easily download a port scanner and scan the SQL Server for open ports. Employees already know what port the SQL Server is listening on, as they know how to connect to it already. The two most common ways of a data breach are employees and SQL Injection. If you think that hiding your SQL Servers on a different TCP port number is going to make them harder to break into you are sadly mistaken. Andy said it best here in a conversation on Twitter that happened in the #sqlhelp hash tag. We’ve all heard the argument that using a different TCP port number for SQL, other than 1433, is more secure.