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Files get a "quarantine flag" set on them as metadata when downloaded on OS X. Gatekeeper uses this (along with the developer signature) to check if an app is "

Files get a "quarantine flag" set on them as metadata when downloaded on OS X. Gatekeeper uses this (along with the developer signature) to check if an app is "safe" to open or not. Not sure where this sqlite database fits in, but it's very likely related to that. See also https://support.apple.com/kb/HT3662 https://support.apple.com/kb/HT3662

sp332 14y ago
The why is the Mac App Store exempt?
- jjcm 14y ago
  Trusted/controlled source.
- arrrg 14y ago
  Not just the Mac App Store, by the way. CDs or any other way of getting the file on the Mac except downloading are, too. That all makes perfect sense. It doesn’t provide perfect protection, but it does provide sensible protection.