Apple flub leaves users confused over 'damaged' apps

mac app store

The problem was caused by letting a security certificate expire


Mac users who rely on apps provided through Apple's App Store are facing some confusion Thursday after an error message caused by Apple incorrectly said that they had to re-install their applications.

The problem, as identified by developer Paul Haddad of Tapbots (the makers of the popular Tweetbot client) is that Apple's Mac App Store security certificates expired Thursday, five years after their original creation. Without a valid security certificate, apps that users tried to open would throw up an ominous message that said an app was "damaged" and couldn't be opened.

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