Depending on the type of spyware on your device, you may notice:
Your device is much slower than usual.    You're getting more pop-ups.    There are new toolbars and homepages on your browser.
Your battery life is shorter than it used to be.    You’re being forced to log into secured sites multiple times.    Your antivirus software has been disabled.
You see big increases in the amount of data you’ve used.