question: A security warning that says “Your device is currently running an older version of Android”
answer: 
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  If your device is running Android 6 or below, you will receive a warning that says “Your device is currently running an older version of Android that no longer receives updates” when you launch the ExpressVPN Android app.
  
  Several security issues have not been addressed on these older Android versions, which may impact ExpressVPN’s ability to protect your privacy and security.
  
  For example:
  
  Android may be unable to warn you if the app you are trying to use has been tampered with, which can cause harm to your device and your personal information.
  Your device may be compromised by simply visiting some websites or running some apps.