Do you have an iPad or an iPhone 5 or 6 (including the “S” models)?  If you do, have you updated the operating system to version 9.3.1 yet?  If not, you should do this ASAP!
 
Prevent brick glitch by updating your iDevice
On March 31 of this year, Apple released an update to the operating system that powers your iPhone and iPad - iOS.  Apple releases upgrades to its iOS operating system when new features are developed, or when specific, very severe security vulnerabilities are discovered.  It is this second reason that we’re alerting those of you who own these newer models of iPhones and iPads.
 
A significant issue in the iOS operating system was discovered that could render your device completely unusable. The industry term you may hear is “bricked,” as in, “your shiny new iPhone or iPad is suddenly as useful as a brick.” Don’t let this happen to you! 
 

Cause of the glitch (don’t try this at home)
The flaw that was uncovered centered around resetting the date of your device to “Jan 1, 1970”.  Please do NOT experiment with this setting if you have not updated your phone to iOS 9.3.1 (the most current iOS release).  Doing so will cause your phone to operate in a strange manner for a short period of time before it significantly overheats and simply stops working.
 
We heard about this situation from an article published by Brian Krebs in his “Krebs on Security” blog.  Brian is an investigative journalist and well-respected in information security fields for his work on exposing major hacking and breach stories over the past few years.  Here is a link to the article - http://krebsonsecurity.com/2016/04/new-threat-can-auto-brick-apple-devices/   
 
Avoid attacks by connecting to known WiFi networks only
A key point in the Krebs article focuses on the WiFi networks that we all “trust” and allow our devices to connect to.  For example, networks like “attwifi” are found in many public locations like Starbucks or a variety of hotels.  Because our devices are designed to automatically connect to these networks after you have connected for the first time, AND your device is designed get constant updates for date and time from these network sources, “…potential victims would need only to wander within range of a hostile wireless network to have their pricey Apple devices turned into useless bricks.”
 
What you should do
We urge you to do these two simple things:
1.      Update your iPhone or iPad to the latest version of the iOS operating system (version 9.3.1) right away.
2.      When accessing WiFi on your iDevice, make sure to only connect to “known” networks. If you still decide to connect to a network that you don’t know or trust, be extremely cautious.