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  • Many Mac App Store Users Forced to Redownload Mac Apps After Certificate Problems


    Many OS X users have reported problems with Mac App Store applications on Thursday after what appears to be a problem with Apple's certificate authentication process. In further detail, it appears that the certificates used to authenticate these applications have expired on November 11th, 2015, and now all of the applications are in need of an updated certificate.

    Although some users have managed to get around the issue at an earlier hour by simply signing in with their Apple ID when prompted, others are unable to do so because Apple's servers are getting slammed with so many certificate requests that the user receives an error that goes along the lines of: '"Insert App Name Here" is damaged and can't be opened. Delete "Insert App Name Here" and download it again from the App Store.'

    Tweetbot developer Paul Haddad was among the first of the Mac App Store developers to identify the problem this afternoon, showing the problem is related to the certificates, and that sometimes a reboot or delete and re-installation of the application can help rectify the issue:



    Apple now appears to be handing out certificates that expire in 2035, which means if you're able to re-install applications, you'll get the updated certificates and should stop receiving these errors.

    Source: MacRumors
    This article was originally published in forum thread: Many Mac App Store Users Forced to Redownload Mac Apps After Certificate Problems started by Anthony Bouchard View original post