For the Mac users: Open Keychain Access in Utilities folder. Select "System Roots" and in the right-pane scroll down to Diginotar. Double click to open and exp

For the Mac users: Open Keychain Access in Utilities folder. Select "System Roots" and in the right-pane scroll down to Diginotar. Double click to open and expand "Trust". "When using this certificate" : "Never trust" I expect Apple to remove them from the list any day now. But in the meantime here you go.