All your Mac's old install CDs won't work anymore | Nobody Is Perfect | Apple | EdTech  | Apple, Mac, MacOS, iOS4, iPad, iPhone and (in)security... | Scoop.it
From thenextweb.com - March 4, 2016 2:13 PM
When Apple’s Worldwide Developer Certificate expired in February it caused problems for some developers, but another major problem that’s going to affect more people has just surfaced: it breaks OS X installers.

If you’ve created an OS X installation CD or downloaded an installer it won’t work anymore because it can’t be verified with Apple. To get it going again, you need to re-download the entire installer and create a new CD, which is an utter hassle.

 

Learn more:

 

http://www.scoop.it/t/apple-mac-ios4-ipad-iphone-and-in-security