A user's Android 7 phone has been crashing, and they claim that their data usage has increased despite the fact that their phone habits haven't changed. What will you think is the source of the problem?

Both recurrent crashes and excessive data usage may signal malware on a phone. Security upgrades for Android OS often expire three years after the OS's release, and without security updates, an older device is more vulnerable to malware. In this case, the best thing to do is go to the Google Play store and download antimalware software to scan the device. It could perhaps be time to think about an upgrade.