Is your phone a victim of malware?
Here are some simple ways to find out if your phone has picked up malicious software. First of all, check your data usage, unusually high usage may suggest a malicious background app. Look at your phone bill—some malware can send texts to premium numbers without your knowledge.
If you see ad pop-ups even with your browser closed, watch out. Faster battery drain or phone overheating are also signs of possible hidden malware.