Apple has phased out older security certificates on their backend servers. Ensure your device's date and time are set to "Set Automatically" in settings, as an incorrect system clock breaks App Store handshake protocols. Is it safe to enter my Google credentials on iOS 7 Safari?
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If you can tell me , I can help you find the best tool to proceed with, or offer browser-based alternatives that don't require any modifications. Apple has phased out older security certificates on