Update tampered with during download message?

I received an error message on both my mini and macbook pro while installing the most recent security, safari, and remote desktop client updates. I've never seen anything like this before, i.e., the warning that the update may have been tampered with during download. I read the support docs about verifying the certif. #s and saw they were in fact different (the one I downloaded from the Apple support site) but it also said to use software update function in OSX to complete the update - which I did... What the heck is going on with this? remote desktop client is not even something I even want or need? Please advise.
Thanks
Message was edited by: estabroo

remote desktop client
Part of the OS. Not sure on the other problem.

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