Android update coming with regular malware scans

A new Android update is rolling out that will add a bit more security when it comes to apps that may harm your device. The update from Google intends to make sure that apps installed on your device — from Google Play or elsewhere — are playing nice and "behaving in a safe manner". Currently the system scans applications at the time you install them, but now it will continuously check all the apps on your device, even after they've been installed.

source: androidcentral