Why do I have a security notice appearing on my notifications recently?

[TukaTuka]

Security Notice Appearing on Notification recently

Hello Guys I just got new Samsung Galaxy S5. Unfortunately i got this Security Notification all time.

Security Notice.
Unauthorized actions have been detected. Restart your device to undo any unauthorized changes.

My phone's Android Version is 4.4.2
I got no idea about what's wrong here HELP ME

 

[TukaTuka]

Re: Security Notice Appearing on Notification recently

Please help