Apple released a series of critical security updates last night (1/23) for nearly their entire product line. Please take a few moments today to update all of your Apple products (iPhones, iPads, Macbooks, Mac Minis, etc.). We maintain an Apple update server on our local network. Your devices will download updates faster here than anywhere else. You should also visit the App Store on your device and update all of your installed apps.
How to update iOS/OSX: https://support.apple.com/en-us/HT201541
Turn on automatic downloads: https://9to5mac.com/2013/09/20/ios-7-how-to-set-up-automatic-app-updates/
Remember: You should always run the latest version of the apps that you choose to install on your device.