It should come up with a list of every app on the Mac with a MAS receipt. Open FAF and in the box type _MASReceipt and press Find. This app is easier to use and seems to be more powerful than Spotlight.
There would not be a notice of an update with someone else's Apple ID showing in the MAS on your Mac, if there was not an app with a receipt from this person's account somewhere on your Mac. It is that receipt that the MAS uses to alert you that an app has an update. It has the Apple ID of the MAS account that bought/acquired the app from the MAS. In the Contents folder is a _MASReceipt folder and in that folder is the coded MAS receipt.
Right click on the app's icon in your Apps folder and choose Show package contents. Since my last comment I have come up with a way to hunt down the pirated app.Īll MAS apps have a MAS receipt in their app bundle.
