Should I change the domain administrator username?

Is it advisable to change the domain administrator's username from the default "administrator"?  I'm thinking this may provide another layer of security from outside attacks.  Are there any possible side effects to changing the username?  This is a Server 2008 environment.
jdouthitAsked:
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motnahp00Commented:
I always change the administrator username. All a hacker needs is two pieces of information: username and password. By leaving it to a default value, you already gave half the answer.
AnuroopsunddCommented:
Yes, from security prospective it is adviced to change administrator username. if you are not running service or application where you have hardcoded using the username it should work fine.
Leon FesterSenior Solutions ArchitectCommented:
It is recommend to rename the Domain Admin and any other default accounts.
It provides the depth-in-defense that you're looking for.
Additionally, you'll see it come up as part of security and compliance requirements in some environments.

Here's the lowdown and howto from Microsoft.
http://technet.microsoft.com/en-us/library/cc700835.aspx

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