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That kind of sounds like an advertisement (spam) trying to get you to click on a link...
Can you post a picture / screenshot of this?
Does this mean some one is using this app to spy on me?Uninstall all DU Apps.
DU battery saver is not saving your battery, and is likely the cause of your problem.
I have taken a screen shot but don't know how to post it on the site
.DU Speed Booster is an Android optimizer & cleaner master with a FREE built-in antivirus security feature. It can boost the speed of your phone by up to 60%, cleans junk (cache) files from your system, and increases the available storage space on your SD card. It is a total Android phone optimization solution that combines the advanced functionality of an apps task cleaner, speed and ram booster, storage (junk & cache) analyzer, security antivirus guard and protection master for
).Why would the app produce a message saying "data secretly being used"? I have uninstalled the app.
As @scary alien suggested, if you click the notification it may promote one of their other apps to "fix" the issue. It's somewhat of a common thing; you see it on computers all the time. Popups scaring you into installing something to protect yourself.Why would the app produce a message saying "data secretly being used"? I have uninstalled the app.