Matt Godden: If you’re using #macOS #HighSierra or #Sierra, #iCloud has stopped working / can’t log in, and you can’t access iCloud.com in Safari – here’s a solution. Install the Apple IST CA 2 – G1 certificate, and everything will work again. Previously: Some Web Sites Will Stop Working With El Capitan and Older Beware … Continue reading Unable to Establish Secure Connection to idmsa.apple.com