Using Mountain Lion on my "MacPro5,1" - Software update keep telling me that there is an update to "Twitter,Inc" yet I do not have this software. Cannot find it anywhere. I don't use or have it on my iPhone either. Even worse, if I do try the update, it offers a sigh-in under a name I do not know. I have tried to look in the Library/Receipts for "Twitter" but can find nothing. All very annoying! Anyone have any ideas? Thanks.
Maybe it was a free download that has now been updated.
Check the Mac App store. Look on the Purchases tab.