"There are trespassing signs. Check it in Observer Settings screen." This is the above message that I am getting whenever I open a new app on my Android 4.1.2 Samsung Galaxy Grand DUOS. This has started suddenly when my child was just playing a simple ABC kind of rhymes.

Following things have been tried by me, in the given order, but without success: [a] Check out which was the last 3-apps installed and the uninstalled them [b] Cleared App-cache [c] Did a restart

Any pointers or solution is welcome. Thanks in advance for your help.

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    That could very well be a misbehaving app (or rather malware), as you already guessed. Trying a malware scanner might reveal the culprit. From the message, it could also be some "security app" (a true one or one posing as such). Have you installed something like that? // BTW: Googling the message, I found it here, so it belongs to a specific app. Does "RedzMax" ring a bell? – Izzy Dec 21 '13 at 19:14

It is caused by the app Smart App Protector that maybe you installed and activated an option called Observer. Just check the observer and watch who wanted to enter your apps.

Good luck.

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